subject:(Ionic liquids)

Texas Tech University

1. Gurung, Eshan. Physical property, structure, and dynamics studies of ionic liquid systems.

Degree: PhD, Chemistry, 2016, Texas Tech University

► Abstract Ionic liquids (ILs) are organic salts with melting points at or below 373 K. As the physicochemical properties of ionic liquids can be modulated… (more)

▼ Abstract Ionic liquids (ILs) are organic salts with melting points at or below 373 K. As the physicochemical properties of ionic liquids can be modulated according to need, they are also called “designer” solvents. A comparative study of the intermolecular dynamics of a nonpolar molecular solute CS2 in a series of monocationic ILs, 1-alkyl-3-methylimidazolium bis(trifluoromethane-sulfonyl)amide ([CnC1im][NTf2] for n = 3-5) and their dicationic equivalents, 1,6-bis(3-methylimidazolium-1-yl) alkane bis(trifluoromethane-sulfonyl)amide ([(C1im)2Cn][NTf2]2 for n = 6, 8 and 10) was done as a function of concentration using optical heterodyne-detected Raman-induced Kerr effect spectroscopy (OHD-RIKES). The OHD-RIKES data indicate that CS2 molecules experience a stiffer potential in dicationic ILs as compared to monocationic ILs. The effect of cation symmetry on the solvation of solute molecules in imidazolium-based ILs was investigated by comparing the OKE spectra of CS2 in asymmetric ILs, ([CnC1im][NTf2] for n = 3, 5 and 7) to those of CS2 in same number of alkyl chain carbon atoms, symmetric ILs ([(Cn)2im][NTf2] for n = 2-4) using OHD-RIKES. The OKE results indicate that the CS2 molecules experience stiffer potential in shorter chained symmetric IL C2C2, than in asymmetric IL, C3C1. But in longer alkyl chain length, CS2 molecules experience similar stiffness of potential irrespective of symmetry of the alkyl chains. Two series of aromatically functionalized ILs containing common cations 1,3-dibenylimidazolium and 1-(2-naphthylmethyl)-3-methylimidazolium, but with varying anions were successfully synthesized and crystallized. Determinations of single X-ray crystal structures indicate that variation of anions has an effect on hydrogen bonding and π-stacking interactions in the crystalline states of these ILs. In addition, these two series of ILs that differ in symmetry due to the position of the phenyl rings had different patterns of packing of ions in the crystal lattice. Understanding how cation structure determines physicochemical properties of ILs helps in further tuning and designing ILs for a specific application. The densities of the homologous series of branched ILs and their linear counterparts with a given number of alkyl carbon atoms N, were measured as functions of temperature. This study showed that branching of alkyl chains does not affect the densities of ILs. Advisors/Committee Members: Poirier, L William (committee member), Wylie, Benjamin J (committee member), Quitevis, Edward L (Committee Chair).

Subjects/Keywords: ionic liquids

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APA (6^th Edition):

Gurung, E. (2016). Physical property, structure, and dynamics studies of ionic liquid systems. (Doctoral Dissertation). Texas Tech University. Retrieved from http://hdl.handle.net/2346/72376

Chicago Manual of Style (16^th Edition):

Gurung, Eshan. “Physical property, structure, and dynamics studies of ionic liquid systems.” 2016. Doctoral Dissertation, Texas Tech University. Accessed March 02, 2021. http://hdl.handle.net/2346/72376.

MLA Handbook (7^th Edition):

Gurung, Eshan. “Physical property, structure, and dynamics studies of ionic liquid systems.” 2016. Web. 02 Mar 2021.

Vancouver:

Gurung E. Physical property, structure, and dynamics studies of ionic liquid systems. [Internet] [Doctoral dissertation]. Texas Tech University; 2016. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2346/72376.

Council of Science Editors:

Gurung E. Physical property, structure, and dynamics studies of ionic liquid systems. [Doctoral Dissertation]. Texas Tech University; 2016. Available from: http://hdl.handle.net/2346/72376

University of Notre Dame

2. Michelle Barron (Morton). Effects of Nitrogen Based Anions on CO₂ Binding and Proton Affinity</h1>.

Degree: Chemistry and Biochemistry, 2013, University of Notre Dame

URL: https://curate.nd.edu/show/bc386h4623x

► The anion appears to be the one of the most important factors when selecting an ionic liquid for the capture of CO₂. Experiments have… (more)

Subjects/Keywords: Ionic Liquids

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APA (6^th Edition):

(Morton), M. B. (2013). Effects of Nitrogen Based Anions on CO₂ Binding and Proton Affinity</h1>. (Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/bc386h4623x

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

(Morton), Michelle Barron. “Effects of Nitrogen Based Anions on CO₂ Binding and Proton Affinity</h1>.” 2013. Thesis, University of Notre Dame. Accessed March 02, 2021. https://curate.nd.edu/show/bc386h4623x.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

(Morton), Michelle Barron. “Effects of Nitrogen Based Anions on CO₂ Binding and Proton Affinity</h1>.” 2013. Web. 02 Mar 2021.

Vancouver:

(Morton) MB. Effects of Nitrogen Based Anions on CO₂ Binding and Proton Affinity</h1>. [Internet] [Thesis]. University of Notre Dame; 2013. [cited 2021 Mar 02]. Available from: https://curate.nd.edu/show/bc386h4623x.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

(Morton) MB. Effects of Nitrogen Based Anions on CO₂ Binding and Proton Affinity</h1>. [Thesis]. University of Notre Dame; 2013. Available from: https://curate.nd.edu/show/bc386h4623x

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Canterbury

3. Walst, Kelvin John. Synthesis and Characterization of Triaminocyclopropenium Ionic Liquids.

Degree: PhD, 2013, University of Canterbury

URL: http://dx.doi.org/10.26021/6108

► This thesis describes the synthesis and characterization of triaminocyclopropenium, [C3(NR2)3]+, ionic liquids. A range of triaminocyclopropenium salts were prepared: D3h, C3h, C2v and Cs symmetric… (more)

▼ This thesis describes the synthesis and characterization of triaminocyclopropenium, [C3(NR2)3]+, ionic liquids. A range of triaminocyclopropenium salts were prepared: D3h, C3h, C2v and Cs symmetric cations with a variety of substituents. D3h and C3h symmetric cations were prepared from pentachlorocyclopropane and dialkylamines, whereas a variety of methods were investigated for C2v and Cs symmetric cations, with the most versatile synthesis involving the alkylation of bis(dialkylamino)cyclopropenone followed by reaction with dialkylamine. Metathesis with a range of common ionic liquid anions was carried out to facilitate comparisons to other common classes of ionic liquids. The triaminocyclopropenium salts were characterized by standard techniques (1H-, 13C{1H}-NMR, ES+ MS, microanalysis) as well as particular physicochemical properties relevant to ionic liquids. The thermal behaviour was examined with DSC, with the majority of salts being liquid at room temperature. The viscosity of triaminocyclopropenium ionic liquids was similar to other classes of ionic liquid cations, in the range of 58.4 to 554 mPa s at 20 °C. This is despite the generally large size of the cations investigated, which also causes the conductivity to be lower. Triaminocyclopropenium ionic liquids show good ionicity, more than other common classes of ionic liquid cation, which is likely due to the relatively electron-rich nature of the cation. The thermal, electrochemical and chemical stability of triaminocyclopropenium ionic liquids was accessed. Good thermal stabilities were observed, with onset temperatures of 339 to 413 °C. The electrochemical window of [C3(NEt2)3]TFSA is 3.6 V, this is low due to the easy oxidation of the cation. The chemical stability is good under acidic, weakly-basic, weakly-nucleophilic, reducing and weakly-oxidising conditions, however, the cations are unstable to the strong nucleophile/base hydroxide. Triaminocyclopropenium ionic liquids showed a full range of solubility and miscibility: from fully miscible in water to fully miscible in hexane. A preliminary investigation of ionic liquid fluorides was carried out. While stable ionic liquids with naked fluorides were not obtained, ionic liquids with strongly-bound solvate molecules (ethanol and acetic acid) were seeen, and their viscosity, conductivity and density were measured. The attachment of hydroxyl functional groups to triaminocyclopropenium cations was seen to improve the stability of ionic liquid fluorides, although at the cost of high viscosity.

Subjects/Keywords: ionic liquids; triaminocyclopropenium

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APA (6^th Edition):

Walst, K. J. (2013). Synthesis and Characterization of Triaminocyclopropenium Ionic Liquids. (Doctoral Dissertation). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/6108

Chicago Manual of Style (16^th Edition):

Walst, Kelvin John. “Synthesis and Characterization of Triaminocyclopropenium Ionic Liquids.” 2013. Doctoral Dissertation, University of Canterbury. Accessed March 02, 2021. http://dx.doi.org/10.26021/6108.

MLA Handbook (7^th Edition):

Walst, Kelvin John. “Synthesis and Characterization of Triaminocyclopropenium Ionic Liquids.” 2013. Web. 02 Mar 2021.

Vancouver:

Walst KJ. Synthesis and Characterization of Triaminocyclopropenium Ionic Liquids. [Internet] [Doctoral dissertation]. University of Canterbury; 2013. [cited 2021 Mar 02]. Available from: http://dx.doi.org/10.26021/6108.

Council of Science Editors:

Walst KJ. Synthesis and Characterization of Triaminocyclopropenium Ionic Liquids. [Doctoral Dissertation]. University of Canterbury; 2013. Available from: http://dx.doi.org/10.26021/6108

Penn State University

4. Liu, Yang. Ionic Electroactive Polymer Composite Actuators.

Degree: 2012, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/14570

► In the past decades, ionic electroactive polymers (i-EAPs) have become attractive transduction materials due to their relatively large electromechanical actuations that can be generated under… (more)

▼ In the past decades, ionic electroactive polymers (i-EAPs) have become attractive transduction materials due to their relatively large electromechanical actuations that can be generated under low voltages (~ a few volts) and many other advantages, such as flexibility and light weight. These i-EAP actuators hold promises for applications including artificial muscles, robots, micro-electromechanical systems (MEMS), nano-electromechanical systems (NEMS), and energy harvesting. On the other hand, one critical issue in utilizing i-EAPs for those applications is how to significantly improve the electromechanical performance, including the actuation speed, actuation strain level and efficiency. Particularly, extremely low efficiency is the major drawback of current i-EAP actuators. This dissertation discusses the physics in ionic polymer composite actuators and develops solutions to improve the actuation strain, speed, and efficiency. One general approach through the entire dissertation is to electrically and electromechanically analyze ionic polymer composite actuators to identify the limiting factors, and design a strategy to guide material selection or device fabrication for better performance. Two types of ionic polymer actuators will be discussed: (i) ionic polymer conductive network composite (IPCNC) actuators that consist of an ionic liquid (IL) containing polymer membrane and large surface area composite electrodes, referred to as the “IPCNC actuator”; and (ii) IL containing ionic polymer membranes with planar Au electrodes, referred to as the “ionic polymer membrane actuator”. While the composite electrodes in the IPCNCs provide large specific capacitance for ion storage which enhances the bending actuation, the ionic polymer membrane actuators offer a simple structure for device modeling and material analysis. IPCNC actuators are fabricated and discussed first. IPCNCs with disordered CNC nanomorphology (nanoscale morphology), mostly made with conducting nanoparticles, are discussed in Chapter 3, while IPCNCs with ordered CNC nanomorphology, in which vertically aligned carbon nanotubes (VA-CNTs) are implemented, are discussed in Chapter 4. In these chapters, electrical and electromechanical models are established to analyze the performance of IPCNC actuators. Firstly, electronic equivalent circuits are developed to model the complex frequency-dependent impedance and explain the initial response (t<10s) of ionic polymer composite actuators. It is found that the low frequency responses of these actuators indicate Warburg diffusion (semi-finite diffusion). When there is no CNC or when CNC is very thin (tens of nm), a simple equivalent circuit, which only consists of Warburg impedance AW, bulk resistance R, and electric double layer capacitance Cdl can be used, where Cdl and AW dominate the fast and slow responses of the actuator, respectively. When the CNC is thick (several µm), the aforementioned equivalent circuit is no longer adequate; therefore, the de Levi transmission line is introduced to model the CNC… Advisors/Committee Members: Qiming Zhang, Dissertation Advisor/Co-Advisor, Qiming Zhang, Committee Chair/Co-Chair, Srinivas A Tadigadapa, Committee Member, Shizhuo Yin, Committee Member, Ralph H Colby, Committee Member.

Subjects/Keywords: Ionic Electroactive Polymer; Ionic Liquids; Actuator

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APA (6^th Edition):

Liu, Y. (2012). Ionic Electroactive Polymer Composite Actuators. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/14570

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liu, Yang. “Ionic Electroactive Polymer Composite Actuators.” 2012. Thesis, Penn State University. Accessed March 02, 2021. https://submit-etda.libraries.psu.edu/catalog/14570.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liu, Yang. “Ionic Electroactive Polymer Composite Actuators.” 2012. Web. 02 Mar 2021.

Vancouver:

Liu Y. Ionic Electroactive Polymer Composite Actuators. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Mar 02]. Available from: https://submit-etda.libraries.psu.edu/catalog/14570.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liu Y. Ionic Electroactive Polymer Composite Actuators. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/14570

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rochester Institute of Technology

5. Cigno, Edward. Tribological Study of High Performance Bio-Lubricants Enhanced with Ionic Liquids for Use in Wind Turbines.

Degree: MS, Mechanical Engineering, 2016, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/9036

► Wind power is one of the fastest growing power sources worldwide. Large installations of wind power generation are prominent in Asia, Europe and the… (more)

▼ Wind power is one of the fastest growing power sources worldwide. Large installations of wind power generation are prominent in Asia, Europe and the United States. The gear boxes and bearings of large wind turbines continue to be huge liabilities and fail well short of their 20 year design life. These mechanical failures impose long and expensive repairs. The reliability of wind turbine drive systems may be improved through advances in lubrication. Furthermore, increasing environmental regulations and public policy have ushered in the need for development and implementation of environmentally friendly lubricants. Over the past decade, ionic liquids have emerged as high performance fluids and lubricant additives due to their unique characteristics. Ionic liquids have the ability to form stable ordered layers in liquid state and have been shown to have the potential to be used as high-performance lubricants; however, most of the ionic liquids currently used in lubrication are composed of halogen-containing anions. It is well known that these anions will decompose in presence of water, liberating highly toxic and corrosive species. There is an urgent need to design halogen-free and hydrolytically stable ionic liquids to avoid this negative effect. In this study, the tribological behavior of two phosphonium-based ionic liquids, is investigated as additives of a commercially available bio-oil in steel-steel contact. One of the ionic liquids is halogen-free and will be compared to an ionic liquid that contains halogens. Bio-oil and ionic liquid mixtures containing 0.5 ,1 and 2.5 wt.% of both ionic liquids are studied using a pin on disk tribometer and compared to a commercially available, fully formulated lubricant over a range of three speeds. Results showed, that under the fastest speed tested, At the optimal concentration of 1% [THTDP][NTf2], a wear reduction of 74% was achieved with respect to the base Biotelex. A 66% reduction was observed with respect to the Mobilgear. Similarly, the optimal concentration of 2.5% [THTDP][Phos] displayed a 68% wear reduction compared to the base Biotelex and a 58% reduction compared to the Mobilgear. Advisors/Committee Members: Patricia Iglesias.

Subjects/Keywords: Ionic liquids; Lubrication; Wind turbines

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APA (6^th Edition):

Cigno, E. (2016). Tribological Study of High Performance Bio-Lubricants Enhanced with Ionic Liquids for Use in Wind Turbines. (Masters Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/9036

Chicago Manual of Style (16^th Edition):

Cigno, Edward. “Tribological Study of High Performance Bio-Lubricants Enhanced with Ionic Liquids for Use in Wind Turbines.” 2016. Masters Thesis, Rochester Institute of Technology. Accessed March 02, 2021. https://scholarworks.rit.edu/theses/9036.

MLA Handbook (7^th Edition):

Cigno, Edward. “Tribological Study of High Performance Bio-Lubricants Enhanced with Ionic Liquids for Use in Wind Turbines.” 2016. Web. 02 Mar 2021.

Vancouver:

Cigno E. Tribological Study of High Performance Bio-Lubricants Enhanced with Ionic Liquids for Use in Wind Turbines. [Internet] [Masters thesis]. Rochester Institute of Technology; 2016. [cited 2021 Mar 02]. Available from: https://scholarworks.rit.edu/theses/9036.

Council of Science Editors:

Cigno E. Tribological Study of High Performance Bio-Lubricants Enhanced with Ionic Liquids for Use in Wind Turbines. [Masters Thesis]. Rochester Institute of Technology; 2016. Available from: https://scholarworks.rit.edu/theses/9036

Rochester Institute of Technology

6. Janardhanan, Karthik. Prediction of the Frictional Characteristics of Halogen-Free Ionic Liquids in Elastohydrodynamic Point Contacts.

Degree: MS, Mechanical Engineering, 2016, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/9072

► Ionic Liquids have emerged as effective lubricants and additives to lubricants, in the last decade. Halogen-free ionic liquids have recently started to be considered… (more)

Subjects/Keywords: Friction; Ionic liquids; Tribology; Wear

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APA (6^th Edition):

Janardhanan, K. (2016). Prediction of the Frictional Characteristics of Halogen-Free Ionic Liquids in Elastohydrodynamic Point Contacts. (Masters Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/9072

Chicago Manual of Style (16^th Edition):

Janardhanan, Karthik. “Prediction of the Frictional Characteristics of Halogen-Free Ionic Liquids in Elastohydrodynamic Point Contacts.” 2016. Masters Thesis, Rochester Institute of Technology. Accessed March 02, 2021. https://scholarworks.rit.edu/theses/9072.

MLA Handbook (7^th Edition):

Janardhanan, Karthik. “Prediction of the Frictional Characteristics of Halogen-Free Ionic Liquids in Elastohydrodynamic Point Contacts.” 2016. Web. 02 Mar 2021.

Vancouver:

Janardhanan K. Prediction of the Frictional Characteristics of Halogen-Free Ionic Liquids in Elastohydrodynamic Point Contacts. [Internet] [Masters thesis]. Rochester Institute of Technology; 2016. [cited 2021 Mar 02]. Available from: https://scholarworks.rit.edu/theses/9072.

Council of Science Editors:

Janardhanan K. Prediction of the Frictional Characteristics of Halogen-Free Ionic Liquids in Elastohydrodynamic Point Contacts. [Masters Thesis]. Rochester Institute of Technology; 2016. Available from: https://scholarworks.rit.edu/theses/9072

7. Bhat, Mohsin Ahmad. Electrochemical investigations in Imidazolium based ionic liquids.

Degree: Chemistry, 2011, University of Pune

URL: http://shodhganga.inflibnet.ac.in/handle/10603/3231

►

Room Temperature Ionic Liquids (RTILs) are a new class of solvents receiving increasing attention for their possible use as alternative solvent/electrolyte to conventional electrolytes in… (more)

▼

Room Temperature Ionic Liquids (RTILs) are a new class of solvents receiving increasing attention for their possible use as alternative solvent/electrolyte to conventional electrolytes in electrochemical setups. Due to their wide electrochemical window, appreciable conductivity, ability to dissolve wide range of organic and inorganic substrates, low vapour pressure, high chemical and thermal stability and above all ability to stabilize transient species, RTILs are considered as excellent media for ecofriendly, innovative and sustainable electrochemistry. Besides all the advantageous features RTILs do have, their wide spread use for electrochemical investigations and applications is yet to be realized. Some practical concerns associated with use of RTILs in electrochemical setups and a lack of complete understanding about their role as solvent/electrolytes in electron transfer and the associated reactions are the main reasons that currently hamper their use for electrochemical investigations and applications. In this regard some fundamental aspects related to RTILs, like equilibrium and transport properties of pure RTILs and alteration of these properties through use of cosolvents or variations in experimental parameters, specialities of electrode/RTIL interfaces over that of the electrode/conventional electrolyte solution interfaces, impact of RTIL specific effects on heterogeneous electron transfer and associated chemical reactions need some detailed investigations. Work presented in this thesis is an attempt to have a better understanding about some of these challenges one comes across, while working with RTIL based electrochemical setups. Electrochemistry of model redox systems was explored to test the validity of established theories in RTILs and to realize the potential advantages of RTILs over conventional solvents. Solvent dynamic control over transport, charge transfer processes and ion pair effects are discussed. The advantageous aspects due to solvent specific effects of RTILs over thermodynamic, kinetic and mechanistic aspects of heterogeneous electron transfer and associated reactions are also discussed.

Summary p. 184-185, Publicatiopns p. 186

Advisors/Committee Members: Haram, Santosh K.

Subjects/Keywords: Chemistry; Room Temperature Ionic Liquids

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APA (6^th Edition):

Bhat, M. A. (2011). Electrochemical investigations in Imidazolium based ionic liquids. (Thesis). University of Pune. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/3231

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bhat, Mohsin Ahmad. “Electrochemical investigations in Imidazolium based ionic liquids.” 2011. Thesis, University of Pune. Accessed March 02, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/3231.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bhat, Mohsin Ahmad. “Electrochemical investigations in Imidazolium based ionic liquids.” 2011. Web. 02 Mar 2021.

Vancouver:

Bhat MA. Electrochemical investigations in Imidazolium based ionic liquids. [Internet] [Thesis]. University of Pune; 2011. [cited 2021 Mar 02]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/3231.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bhat MA. Electrochemical investigations in Imidazolium based ionic liquids. [Thesis]. University of Pune; 2011. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/3231

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

8. Nageshwar, D. Synthesis of ionic liquids: application to wittig, reduction and aromatic nucleophilic substitution reactions; -.

Degree: Chemistry, 2010, Jawaharlal Nehru Technological University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/4500

►

As part of an ongoing program in the area of green chemistry, we have considered the synthesis of room temperature ionic liquids and their application… (more)

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As part of an ongoing program in the area of green chemistry, we have considered the synthesis of room temperature ionic liquids and their application as reaction medium in organic transformations. The efforts and contribution towards the preparation and application of ionic liquids have been summarized in the form of this thesis. The thesis entitled ?Synthesis of ionic liquids: Application to Wittig, reduction and aromatic nucleophilic substitution reactions? is divided into five chapters. CHAPTER-I: Introduction to ionic liquids This chapter deals with the 12 principles of green chemistry, ?E? factor, atom efficiency, possible alternative solvents and their applications, ionic liquids, and a few examples on the application of RTILs in organic synthesis. CHAPTER-II: Synthesis and characterization of citronellal based chiral ionic liquids Chapter 2 deals with the preparation and characterization of a series of chiral ionic liquids starting from the chiral pool citronellal. Several new chiral ionic liquids were prepared starting from both the isomers of citronellal with dialkyl amine as the amine source. The Schiff base, thus obtained, was reduced and further reacted with alkyl halides to give ionic liquids. The strategy could begeneralized with several dialkyl amines to design chiral ionic liquids. CHOHCHOHa. X = I, R = Meb. X = I, R = Etc. X = Br, R = n-Prd. X = Br, R = i-Pre. X = Br, R = n-Bu(S)-18(S)-20a-e(R)-18(R)-20a-eHNRHNR(S)-19a-e(R)-19a-eHNRHNRXXXX Figure: 2.1 Retrosynthesis of Citronellal-based chiral ionic liquids. Most of the ionic liquids prepared in this series were found to be liquids at room temperature. CHAPTER-III: Application of ionic liquids in the Wittig reaction and synthesis of lacidipine using ionic liquids Chapter 3 deals with the application of ionic liquids in the Wittig reaction. The generality of the methodology has been demonstrated with various substituted benzaldehydes and ylides.

References given chapters wise

Advisors/Committee Members: Palle, V R Acharyulu, Rao, D Muralimohan.

Subjects/Keywords: ionic liquids; Chemistry; Green Chemistry

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APA (6^th Edition):

Nageshwar, D. (2010). Synthesis of ionic liquids: application to wittig, reduction and aromatic nucleophilic substitution reactions; -. (Thesis). Jawaharlal Nehru Technological University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/4500

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nageshwar, D. “Synthesis of ionic liquids: application to wittig, reduction and aromatic nucleophilic substitution reactions; -.” 2010. Thesis, Jawaharlal Nehru Technological University. Accessed March 02, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/4500.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nageshwar, D. “Synthesis of ionic liquids: application to wittig, reduction and aromatic nucleophilic substitution reactions; -.” 2010. Web. 02 Mar 2021.

Vancouver:

Nageshwar D. Synthesis of ionic liquids: application to wittig, reduction and aromatic nucleophilic substitution reactions; -. [Internet] [Thesis]. Jawaharlal Nehru Technological University; 2010. [cited 2021 Mar 02]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4500.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nageshwar D. Synthesis of ionic liquids: application to wittig, reduction and aromatic nucleophilic substitution reactions; -. [Thesis]. Jawaharlal Nehru Technological University; 2010. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4500

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Newcastle

9. Booker, Katherine. Characterisation and improved performance of molecularly imprinted polymers prepared using room temperature ionic liquids.

Degree: PhD, 2010, University of Newcastle

URL: http://hdl.handle.net/1959.13/805643

►

Research Doctorate - Doctor of Philosophy (PhD)

Molecularly Imprinted Polymers (MIPs) are selective recognitions elements that have biological, chromatographic and sensory applications. While methods exist… (more)

▼

Research Doctorate - Doctor of Philosophy (PhD)

Molecularly Imprinted Polymers (MIPs) are selective recognitions elements that have biological, chromatographic and sensory applications. While methods exist to reproducibly form MIPs with high affinity for a wide range of target molecules, improvements in production efficiency and selectivity are constantly being sought. Room Temperature Ionic Liquids (RTILs) represent a reasonably novel class of ‘green solvents’ which have been widely utilised for polymerisation reactions, resulting in enhanced polymerisation rates and polymer yields. In this study, the performance of imprinted polymers prepared in RTILs compared against equivalent formulations prepared using conventional organic solvents (Volatile Organic Compounds, or VOCs) is reported. RTILs were found to greatly improve reaction efficiency compared to VOCs whilst maintaining reasonable levels of selectivity. The effect of variables such as RTIL structure, polymerisation temperature and solvent volume on the efficiency and structure of a cocaine-imprinted MIP were investigated and were found to affect polymer properties such as surface morphology, swelling, zeta potential, degree of crosslinking as well as selectivity for the template. Imprinting factors as high as 2.2 were observed for RTIL-prepared MIPs under initial rebinding conditions when using [bmim]BF₄ as polymerisation solvent, compared with the highest imprinting factor of 1.6 for the polymers prepared in CHCl₃. Optimisation of rebinding conditions resulted in ~26% improvement in selectivity for both RTIL and VOC-prepared polymers when using DCM as rebinding solvent. Molecular modelling and NMR analysis of R, S-propranolol-imprinted polymers indicated some interaction between the RTIL anion and the template and monomer, although this was not found to prevent template/monomer associations in the RTIL [bmim]PF₆. [bmim]PF-₆prepared polymers showed good selectivity (imprinting factor of 2.3) and affinity for the template over other compounds, although binding capacity was lower than for the VOC-prepared polymers. The binding capacity for the RTIL-prepared polymers was enhanced through the use of RTILs of increased alkyl chain lengths as polymerisation solvent and by optimisation of rebinding conditions, with the highest imprinting factor of 3.8 observed when rebindings were conducted in methanol.

Advisors/Committee Members: University of Newcastle. Faculty of Science and Information Technology, School of Environmental and Life Sciences.

Subjects/Keywords: imprinted polymers; ionic liquids

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APA (6^th Edition):

Booker, K. (2010). Characterisation and improved performance of molecularly imprinted polymers prepared using room temperature ionic liquids. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/805643

Chicago Manual of Style (16^th Edition):

Booker, Katherine. “Characterisation and improved performance of molecularly imprinted polymers prepared using room temperature ionic liquids.” 2010. Doctoral Dissertation, University of Newcastle. Accessed March 02, 2021. http://hdl.handle.net/1959.13/805643.

MLA Handbook (7^th Edition):

Booker, Katherine. “Characterisation and improved performance of molecularly imprinted polymers prepared using room temperature ionic liquids.” 2010. Web. 02 Mar 2021.

Vancouver:

Booker K. Characterisation and improved performance of molecularly imprinted polymers prepared using room temperature ionic liquids. [Internet] [Doctoral dissertation]. University of Newcastle; 2010. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1959.13/805643.

Council of Science Editors:

Booker K. Characterisation and improved performance of molecularly imprinted polymers prepared using room temperature ionic liquids. [Doctoral Dissertation]. University of Newcastle; 2010. Available from: http://hdl.handle.net/1959.13/805643

Addis Ababa University

10. Tarekegn, Heliso. SYNTHESIS AND CHARACTERIZATION OF TRIFLOUROACETYLATED IMIDAZOLE BASED IONIC LIQUIDS .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/509

► The ionic liquid field has been extensively dominated by imidazolium salts with anions most frequently being fluorine-containing. By modifying the anion or the fluorine containing… (more)

Subjects/Keywords: alkylation; ionic liquids; triflouroacetylation

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APA (6^th Edition):

Tarekegn, H. (2012). SYNTHESIS AND CHARACTERIZATION OF TRIFLOUROACETYLATED IMIDAZOLE BASED IONIC LIQUIDS . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/509

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tarekegn, Heliso. “SYNTHESIS AND CHARACTERIZATION OF TRIFLOUROACETYLATED IMIDAZOLE BASED IONIC LIQUIDS .” 2012. Thesis, Addis Ababa University. Accessed March 02, 2021. http://etd.aau.edu.et/dspace/handle/123456789/509.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tarekegn, Heliso. “SYNTHESIS AND CHARACTERIZATION OF TRIFLOUROACETYLATED IMIDAZOLE BASED IONIC LIQUIDS .” 2012. Web. 02 Mar 2021.

Vancouver:

Tarekegn H. SYNTHESIS AND CHARACTERIZATION OF TRIFLOUROACETYLATED IMIDAZOLE BASED IONIC LIQUIDS . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Mar 02]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/509.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tarekegn H. SYNTHESIS AND CHARACTERIZATION OF TRIFLOUROACETYLATED IMIDAZOLE BASED IONIC LIQUIDS . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/509

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

11. Baker, Joseph Hugh Franklin. Synthesis Of Novel Ionic Liquid Tagged Porphryin Media Designed For The Oxidation Of Lignin.

Degree: MS, Chemistry, 2012, Encompass Digital Archive, Eastern Kentucky University

URL: https://encompass.eku.edu/etd/120

► The ever growing need for a viable renewable fuel source has led to this thesis project; the biomimetic lignin degradation by means of a… (more)

Subjects/Keywords: ionic liquids; oxidation; porphyrins; Chemistry

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APA (6^th Edition):

Baker, J. H. F. (2012). Synthesis Of Novel Ionic Liquid Tagged Porphryin Media Designed For The Oxidation Of Lignin. (Masters Thesis). Encompass Digital Archive, Eastern Kentucky University. Retrieved from https://encompass.eku.edu/etd/120

Chicago Manual of Style (16^th Edition):

Baker, Joseph Hugh Franklin. “Synthesis Of Novel Ionic Liquid Tagged Porphryin Media Designed For The Oxidation Of Lignin.” 2012. Masters Thesis, Encompass Digital Archive, Eastern Kentucky University. Accessed March 02, 2021. https://encompass.eku.edu/etd/120.

MLA Handbook (7^th Edition):

Baker, Joseph Hugh Franklin. “Synthesis Of Novel Ionic Liquid Tagged Porphryin Media Designed For The Oxidation Of Lignin.” 2012. Web. 02 Mar 2021.

Vancouver:

Baker JHF. Synthesis Of Novel Ionic Liquid Tagged Porphryin Media Designed For The Oxidation Of Lignin. [Internet] [Masters thesis]. Encompass Digital Archive, Eastern Kentucky University; 2012. [cited 2021 Mar 02]. Available from: https://encompass.eku.edu/etd/120.

Council of Science Editors:

Baker JHF. Synthesis Of Novel Ionic Liquid Tagged Porphryin Media Designed For The Oxidation Of Lignin. [Masters Thesis]. Encompass Digital Archive, Eastern Kentucky University; 2012. Available from: https://encompass.eku.edu/etd/120

12. Cowart, Sam. Advances In The Electrodeposition Of Tantalum From Ionic Liquids In A Technical Plating Setup.

Degree: MS, Chemical Engineering, 2012, University of North Dakota

URL: https://commons.und.edu/theses/1217

► Tantalum is a tough, ductile, refractory metal that is highly corrosion resistant. The corrosion resistance of tantalum is evident in diverse conditions, including high… (more)

▼ Tantalum is a tough, ductile, refractory metal that is highly corrosion resistant. The corrosion resistance of tantalum is evident in diverse conditions, including high temperature and severe chemical environments. Application of a tantalum layer onto other metal substrates would be a beneficial corrosion-resistance technique. The method investigated for application of tantalum onto various metal substrates was via electrodeposition from ionic liquid electrolytes. The use of ionic liquids allows the electrodeposition process to be performed at lower temperatures (less than 200 degrees Celsius) than the mainstream process of deposition at higher temperatures (750-800 degrees Celsius) from molten salt electrolytes. The lower operating temperature ultimately protects the substrate from increased rates of corrosion as well as strength loss through annealing. Recently published literature on the electrodeposition of tantalum onto other substrates formed the basis for this research. This investigation attempted to determine whether previous research could be expanded upon through the variation of type of ionic liquid, the addition of organic solvents or alkali metal salts, and destabilization of tantalum-halide clusters. An electrochemical cell was constructed that utilizes a tantalum foil anode and a steel or nickel cathode. The electrolyte contained tantalum salts dissolved in various ionic liquids, with or without various organic solvents. The cell was protected from water vapor and oxygen by being placed into a glove box containing an ultra-high purity nitrogen atmosphere. The actual plating process was conducted galvanostatically, and the applied current and electrolyte composition were varied to determine the effect on the deposition process. Electrodeposits formed during experimental trials were analyzed through the use of scanning electron microscopy (SEM) with energy-dispersive x-ray spectroscopy (EDS). This study represents particular advancements in the body of knowledge on electrodeposition of tantalum from ionic liquids. Individual ionic liquids were evaluated that had not been previously investigated as refractory metal electrolytes. Additionally, the thickest known tantalum electrodeposits, and electrodeposits with the highest reported concentrations of tantalum were produced in this study. Advisors/Committee Members: Juergen Fischer.

Subjects/Keywords: Electrodeposition; Ionic Liquids; Tantalum

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APA (6^th Edition):

Cowart, S. (2012). Advances In The Electrodeposition Of Tantalum From Ionic Liquids In A Technical Plating Setup. (Masters Thesis). University of North Dakota. Retrieved from https://commons.und.edu/theses/1217

Chicago Manual of Style (16^th Edition):

Cowart, Sam. “Advances In The Electrodeposition Of Tantalum From Ionic Liquids In A Technical Plating Setup.” 2012. Masters Thesis, University of North Dakota. Accessed March 02, 2021. https://commons.und.edu/theses/1217.

MLA Handbook (7^th Edition):

Cowart, Sam. “Advances In The Electrodeposition Of Tantalum From Ionic Liquids In A Technical Plating Setup.” 2012. Web. 02 Mar 2021.

Vancouver:

Cowart S. Advances In The Electrodeposition Of Tantalum From Ionic Liquids In A Technical Plating Setup. [Internet] [Masters thesis]. University of North Dakota; 2012. [cited 2021 Mar 02]. Available from: https://commons.und.edu/theses/1217.

Council of Science Editors:

Cowart S. Advances In The Electrodeposition Of Tantalum From Ionic Liquids In A Technical Plating Setup. [Masters Thesis]. University of North Dakota; 2012. Available from: https://commons.und.edu/theses/1217

University of Illinois – Urbana-Champaign

13. Mehta, Neil A. Use of molecular dynamics simulations to study the impact of weak to strong non-covalent chemical interactions.

Degree: PhD, Aerospace Engineering, 2019, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/107838

► In this thesis, we have used Molecular Dynamics (MD) to study the role of van der Waals and Coulomb interactions on two fundamental processes, namely,… (more)

▼ In this thesis, we have used Molecular Dynamics (MD) to study the role of van der Waals and Coulomb interactions on two fundamental processes, namely, gas-surface interactions and electrospray propulsion, respectively. For the gas-surface interaction work, we proved that conventionally used gas surface interaction models were not adequate in reproducing the lobular scattering behavior obtained from the beam molecular experiments. Trajectory MD simulations were used to predict angular distributions and average translational energies. The translational energy and angular distributions of the scattered N₂ were obtained for incidence velocities of 1,453 and 2,220 {m\, s^-1}, and incidence angles of 30{^o}, 45{^o}, and 70{^o} and a surface temperature of 677 K. The trajectories of scattered nitrogen molecules were found to fall into three main categories, i.e., single collision, multiple collisions with escape, and multiple collisions without escape. While the conventional GSI models did not match the translational energy and angular distributions obtained from the experiments, the results obtained from MD simulations were found to be in good agreement. The MD simulations also showed that the number of surface layers used to model the HOPG surface and the carbon-nitrogen Lennard-Jones potential are important in improving the agreement between the simulations and the experiments. Trajectory MD simulations were also performed on quartz surface to study the difference between atomistically smooth (HOPG) and rough surfaces (quartz). The type of surface affected collision statistics for the three collision categories, providing a strong correlation between incidence speed, angle, surface topology and the probability distribution of the energy accommodation coefficients. Based on the scattering characterisics, we developed a direct velocity sampling (DVSM) GSI model, which was then coupled to a DSMC code. A hypersonic flow over a flat plate was simulated using DSMC coupled with DVSM. The coupled simulation predicted flow, such as velocity contours, and surface properties, such as, heat flux in agreement to those observed experimentally for the HOPG surface. When the parameters of quartz were used for the DVSM model, the flow predicted was comparable to the Maxwell gas-surface interaction (GSI) model, highlighting the accuracy and versatility of the DVSM model in modeling flows over smooth and rough surfaces. As a natural progression of our trajectory MD simulation of diatomic N₂ gas, we used trajectory simulations to model collision of ice-like argon and amorphous silica aggregates on the HOPG and quartz surface. It was found that at all incidence velocities, the quartz surface was stickier than the HOPG surface. The sticking probabilities and elastic moduli obtained from MD were then used to model surface evolution at a micron length scale using kinetic Monte Carlo (kMC) simulations. Rules were derived to control the number of sites available for the process execution in kMC to… Advisors/Committee Members: Levin, Deborah A (advisor), Levin, Deborah A (Committee Chair), Rovey, Joshua (committee member), Espinosa-Marzal, Rosa (committee member), Chew, Huck-Beng (committee member).

Subjects/Keywords: Molecular dynamics; Ionic liquids

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APA (6^th Edition):

Mehta, N. A. (2019). Use of molecular dynamics simulations to study the impact of weak to strong non-covalent chemical interactions. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/107838

Chicago Manual of Style (16^th Edition):

Mehta, Neil A. “Use of molecular dynamics simulations to study the impact of weak to strong non-covalent chemical interactions.” 2019. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 02, 2021. http://hdl.handle.net/2142/107838.

MLA Handbook (7^th Edition):

Mehta, Neil A. “Use of molecular dynamics simulations to study the impact of weak to strong non-covalent chemical interactions.” 2019. Web. 02 Mar 2021.

Vancouver:

Mehta NA. Use of molecular dynamics simulations to study the impact of weak to strong non-covalent chemical interactions. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2019. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2142/107838.

Council of Science Editors:

Mehta NA. Use of molecular dynamics simulations to study the impact of weak to strong non-covalent chemical interactions. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2019. Available from: http://hdl.handle.net/2142/107838

Tartu University

14. Vihmann, Triinu. Ionic liquids: synthesis and application in lubrication and lithography .

Degree: 2020, Tartu University

URL: http://hdl.handle.net/10062/69560

► Vajadus uute lubrikandite ja kulumisevastaste õlilisandite vastu on suurenenud, kuna masinatel on pikemad hooldusintervallid, ekstreemsemad kasutustingimused ning uued regulatsioonid emissioonide vähendamiseks. Ioonsed vedelikud on sulas… (more)

▼ Vajadus uute lubrikandite ja kulumisevastaste õlilisandite vastu on suurenenud, kuna masinatel on pikemad hooldusintervallid, ekstreemsemad kasutustingimused ning uued regulatsioonid emissioonide vähendamiseks. Ioonsed vedelikud on sulas olekus soolad, millel on unikaalsed omadused (madal lenduvus, kõrge termiline stabiilsus) ja hiljuti on nad näidanud häid omadusi lubrikantidena. Nanoosakesed on osakesed, mille suurus jääb 1-100nm vahemikku. Nanoosakesi on samuti uuritud kui lubikandi lisandeid nende suure koormustaluvuse ja hõõrdepinda parandavate omaduste tõttu. Antud doktoritöös uuriti erinevate ioonsete vedelike sünteese. Ioonse vedeliku funktsionaalne -OH rühm mängib olulist rolli nanoosakeste funktsionaliseerimisel ja ioonse vedeliku adsorptsioonil metalli pinnale. Ioonseid vedelikke ning nanoosakesi uuriti nii lubrikandina kui ka lubrikandi lisandina, ning triboloogilised mõõtmised näitasid kuni 60% paremaid tulemusi. On väga oluline saavutada stabiilne nanoosakeste (süsiniknanotorude, vase, titaandioksiidi) dispersioon ja selle saavutamiseks kaeti nanoosakesed sobiva kihiga. Veel üks huvitav rakendus ioonsetele vedelikele oleks mikrofiibrite valmistamine in situ SEM. Näidati, et ioonse vedeliku hüdroksüülrühm on väga oluline polümerisatsiooni/tahkestamise protsessil ja mõjutab mehaanilisi omadusi.; New lubricants and improved antiwear additives are in need, because of increased service intervals, extreme conditions and regulations to reduced emissions. Ionic liquids are molten salts, which have unique properties (low volatility, high thermal stability) and recently have shown many advantages in this area. Nanoparticle is a small particle with size between 1-100nm. They have also been reported as lubricant additives due to their high-load tolerance and self-repair function to wear surface. In the present thesis the synthesis of different ionic liquids was investigated. Moreover, task-specific imidazolium based ionic liquids with -OH groups are important for nanoparticle functionalization and ionic liquid adsorption to metal surfaces. Different ionic liquids and nanoparticles were investigated as lubricant and as lubricant additive and tribological measurements showed even up to 60% better performance. It is very important to achieve a stable dispersion of nanoparticles (carbon nanotubes, copper, titanium oxide) and therefore nanoparticles where cover with suitable layer. Another interesting new application of ionic liquids is production and manipulation of microcantilevers in situ in SEM. It was shown that the hydroxyl group of ionic liquid has an important role in the polymerization/solidification process and affects the mechanical properties. Advisors/Committee Members: Mäeorg, Uno, juhendaja (advisor), Saal, Kristjan, juhendaja (advisor).

Subjects/Keywords: ionic liquids; lithographic printing

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APA (6^th Edition):

Vihmann, T. (2020). Ionic liquids: synthesis and application in lubrication and lithography . (Thesis). Tartu University. Retrieved from http://hdl.handle.net/10062/69560

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vihmann, Triinu. “Ionic liquids: synthesis and application in lubrication and lithography .” 2020. Thesis, Tartu University. Accessed March 02, 2021. http://hdl.handle.net/10062/69560.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vihmann, Triinu. “Ionic liquids: synthesis and application in lubrication and lithography .” 2020. Web. 02 Mar 2021.

Vancouver:

Vihmann T. Ionic liquids: synthesis and application in lubrication and lithography . [Internet] [Thesis]. Tartu University; 2020. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10062/69560.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vihmann T. Ionic liquids: synthesis and application in lubrication and lithography . [Thesis]. Tartu University; 2020. Available from: http://hdl.handle.net/10062/69560

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Louisiana State University

15. Singh, Ramesh. Structural and dynamical properties of liquid and solid phases of ionic liquids confined inside nanoporous materials.

Degree: PhD, Chemical Engineering, 2012, Louisiana State University

URL: etd-04262012-113406 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2863

► The purpose of this research is to investigate the physical properties of ionic liquids (ILs) confined inside nanopores of different materials and morphologies. We are… (more)

▼ The purpose of this research is to investigate the physical properties of ionic liquids (ILs) confined inside nanopores of different materials and morphologies. We are interested to study the effect of pore material, morphology and addition of organic solvents on the properties of confined ILs. Understanding the behavior of ILs inside nanopores is relevant to potential applications of these systems in electrochemical double layer capacitors (EDLCs) and dye sensitized solar cells (DSSCs). Such a fundamental understanding is also crucial to optimize the synthesis of hard-templated 1D nanostructures (nanorods, nanotubes, nanowires) based on organic salts, which may be imparted properties (e.g., magnetic, optical) that are desirable for different applications (magnetic hyperthermia cancer treatment, medical imaging, sensors). In this work we have used molecular dynamics (MD) simulations to investigate systems of representative ILs, [BMIM+][PF6-] and [EMIM+][TFMSI-], inside several model materials (e.g., slit-shaped graphitic and titania pores, carbon nanotubes). Formation of different layers of ions was observed for the confined ILs irrespective of variations in pore size, shape, material and amount of solvent. In all cases, change in pore loading leads to lower densities of ions in the center of the pore. The cations close to the pore walls tend to align with their imidazolium rings parallel to the pore surface in the case of carbon materials, and multiple preferential orientations are observed in the case of titania pores. For all porous materials studied, the dynamics of the ions depend strongly on their location with respect to the surface; bulk-like dynamics are generally observed for the ions in the center regions of the pore, with the dynamics becoming slower as the ions get closer to the pore surfaces. Addition of acetonitrile solvent also shows similar layering behavior for ILs and solvent near the pore wall with less variation in the center of the pore. Preferential orientations of the ions remain unaffected and solvent molecules tend to align flat near the pore surface. The dynamics of the ions and molecules increases linearly with increase in IL molar concentration both near the wall and in the center of the pore.

Subjects/Keywords: Ionic Liquids; Molecular Dynamics; confinement

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APA (6^th Edition):

Singh, R. (2012). Structural and dynamical properties of liquid and solid phases of ionic liquids confined inside nanoporous materials. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-04262012-113406 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2863

Chicago Manual of Style (16^th Edition):

Singh, Ramesh. “Structural and dynamical properties of liquid and solid phases of ionic liquids confined inside nanoporous materials.” 2012. Doctoral Dissertation, Louisiana State University. Accessed March 02, 2021. etd-04262012-113406 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2863.

MLA Handbook (7^th Edition):

Singh, Ramesh. “Structural and dynamical properties of liquid and solid phases of ionic liquids confined inside nanoporous materials.” 2012. Web. 02 Mar 2021.

Vancouver:

Singh R. Structural and dynamical properties of liquid and solid phases of ionic liquids confined inside nanoporous materials. [Internet] [Doctoral dissertation]. Louisiana State University; 2012. [cited 2021 Mar 02]. Available from: etd-04262012-113406 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2863.

Council of Science Editors:

Singh R. Structural and dynamical properties of liquid and solid phases of ionic liquids confined inside nanoporous materials. [Doctoral Dissertation]. Louisiana State University; 2012. Available from: etd-04262012-113406 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2863

University of New South Wales

16. Ge, Mengchen. Ionic liquid-based amperometric microarray gas sensors.

Degree: Chemistry, 2014, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/54104 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:13087/SOURCE02?view=true

► Gas sensors have been applied for a wide variety of applications in environmental and occupational health and safety (OHS) sectors. Current commercial amperometric gas sensors… (more)

▼ Gas sensors have been applied for a wide variety of applications in environmental and occupational health and safety (OHS) sectors. Current commercial amperometric gas sensors often suffer from short lifetime due to evaporation of electrolyte (e.g. H2SO4/H2O mixtures or organic solvents such as acetonitrile or propylene carbonate). Non-volatile ionic liquids (ILs) are promising electrolytes which provide a pathway to solve the evaporation problem in amperometric gas sensor. However the IL-based amperometric gas sensor suffers from low sensitivity and slow response time as a result of intrinsic high viscosity of IL. This thesis focuses on the development of IL-based amperometric gas sensor using microelectrode arrays prepared by microcontact printing (μCP) of a passive layer of self-assembled monolayer (SAM) onto gold electrodes to obtain enhanced mass transport in ILs. Thus the thesis is consisted of following content:i) The stability of SAMs such as 1-hexadecanethiol (HDT) and 11-mercaptoundercanoic acid (MUA) at gold and platinum electrodes are established in protic and aprotic room temperature ionic liquids (RTILs). SAMs in ILs show wider potential window compared to that in aqueous solution. Interestingly, it is found that the SAMs prepared by using ionic liquid as solvent are electrochemically more stable than that prepared from organic solvents.ii) An oxygen sensor system has been designed and established using microelectrode array fabricated by μCP of HDT on gold electrodes. The micropatterned gold electrode is immersed into a thin layer of hydrophobic IL electrolyte (e.g. 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [BMIM][NTf2]). The results demonstrate that the microelectrode array sensor has better sensitivity and higher current density compared to macroelectrode-based gas sensor.iii) Finally, a high performance IL microarray gas sensor is developed using individual IL microdroplets as sensing units for oxygen sensing. Benefiting from non-volatility of ILs, small volume of droplet size (short diffusion distance), large surface-to-volume ratio, the new sensor design demonstrates significantly enhanced sensitivity and response time, compared to a conventional macroelectrode based gas sensor. Advisors/Committee Members: Zhao, Chuan, Chemistry, Faculty of Science, UNSW.

Subjects/Keywords: Microarray; Gas sensor; Ionic liquids

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APA (6^th Edition):

Ge, M. (2014). Ionic liquid-based amperometric microarray gas sensors. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/54104 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:13087/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Ge, Mengchen. “Ionic liquid-based amperometric microarray gas sensors.” 2014. Masters Thesis, University of New South Wales. Accessed March 02, 2021. http://handle.unsw.edu.au/1959.4/54104 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:13087/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Ge, Mengchen. “Ionic liquid-based amperometric microarray gas sensors.” 2014. Web. 02 Mar 2021.

Vancouver:

Ge M. Ionic liquid-based amperometric microarray gas sensors. [Internet] [Masters thesis]. University of New South Wales; 2014. [cited 2021 Mar 02]. Available from: http://handle.unsw.edu.au/1959.4/54104 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:13087/SOURCE02?view=true.

Council of Science Editors:

Ge M. Ionic liquid-based amperometric microarray gas sensors. [Masters Thesis]. University of New South Wales; 2014. Available from: http://handle.unsw.edu.au/1959.4/54104 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:13087/SOURCE02?view=true

University of New South Wales

17. Hawker, Rebecca. Controlling reaction outcome through rational selection of the components of an ionic liquid solvent.

Degree: Chemistry, 2018, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/60299 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51722/SOURCE02?view=true

► The work presented in this thesis focuses on using understanding of the effects of ionic liquids on reaction outcome to rationally select the components of… (more)

Subjects/Keywords: Reaction outcome; Ionic liquids; Kinetics

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APA (6^th Edition):

Hawker, R. (2018). Controlling reaction outcome through rational selection of the components of an ionic liquid solvent. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/60299 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51722/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Hawker, Rebecca. “Controlling reaction outcome through rational selection of the components of an ionic liquid solvent.” 2018. Doctoral Dissertation, University of New South Wales. Accessed March 02, 2021. http://handle.unsw.edu.au/1959.4/60299 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51722/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Hawker, Rebecca. “Controlling reaction outcome through rational selection of the components of an ionic liquid solvent.” 2018. Web. 02 Mar 2021.

Vancouver:

Hawker R. Controlling reaction outcome through rational selection of the components of an ionic liquid solvent. [Internet] [Doctoral dissertation]. University of New South Wales; 2018. [cited 2021 Mar 02]. Available from: http://handle.unsw.edu.au/1959.4/60299 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51722/SOURCE02?view=true.

Council of Science Editors:

Hawker R. Controlling reaction outcome through rational selection of the components of an ionic liquid solvent. [Doctoral Dissertation]. University of New South Wales; 2018. Available from: http://handle.unsw.edu.au/1959.4/60299 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:51722/SOURCE02?view=true

University of Texas – Austin

18. -2661-6175. Influence of water on the CO₂ capture mechanism, capacity and thermodynamic properties of aprotic heterocyclic anion ionic liquids.

Degree: PhD, Chemical Engineering, 2020, University of Texas – Austin

URL: http://dx.doi.org/10.26153/tsw/9111

► Ionic liquids (ILs) are promising alternative solvents for carbon capture applications, including aprotic heterocyclic anion (AHA) ILs. These ILs were specifically designed for this application.… (more)

▼ Ionic liquids (ILs) are promising alternative solvents for carbon capture applications, including aprotic heterocyclic anion (AHA) ILs. These ILs were specifically designed for this application. They bind with CO2 in a 1 to 1 mole ratio, with a modest enthalpy of reaction. Water is an important impurity present in the flue gas, and understanding its effect is critical in designing the separation process. Water is of particular importance for ILs because it can change their physical properties and the chemistry of their reaction with CO2. In this dissertation, a comprehensive study regarding the reaction mechanism, CO2 solubility and equilibrium values of the IL-CO2-H2O system is presented. The changes in the reaction mechanism of AHA ILs with CO2 in the presence of water were investigated using NMR spectroscopy methods. It was established that in addition to the anion reacting with CO2 to form carbamate, the anion reacts with water and is reprotonated, leaving hydroxide to react with CO2 to form bicarbonate. The amount of reprotonated anion, carbamate and bicarbonate formed depends strongly on the nature of the anion and substituent groups on it. Additionally, the enthalpy, entropy and equilibrium constants for the reaction between the IL and CO2 in the presence of water were estimated. This was done by fitting experimental data of the CO2 absorption isotherms of AHA ILs and water mixtures to a Langmuir model. The results revealed that the enthalpy of the reaction leading to bicarbonate formation is larger in magnitude than the value obtained for the reaction of the neat IL with CO2 (only carbamate formation). An increase in the overall enthalpy of reaction could increase the amount of energy needed for the IL regeneration process and, subsequently, the cost of carbon capture. Nevertheless, it was concluded that water present in the post-combustion flue gas will not hinder the use of AHA ILs, in CO2 capture applications. Advisors/Committee Members: Brennecke, Joan F., 1962- (advisor), Johnston, Keith P (committee member), McCready, Mark J (committee member), Rochelle, Gary T (committee member).

Subjects/Keywords: Ionic liquids; CO2 capture; Water

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APA (6^th Edition):

-2661-6175. (2020). Influence of water on the CO₂ capture mechanism, capacity and thermodynamic properties of aprotic heterocyclic anion ionic liquids. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://dx.doi.org/10.26153/tsw/9111

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

-2661-6175. “Influence of water on the CO₂ capture mechanism, capacity and thermodynamic properties of aprotic heterocyclic anion ionic liquids.” 2020. Doctoral Dissertation, University of Texas – Austin. Accessed March 02, 2021. http://dx.doi.org/10.26153/tsw/9111.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

-2661-6175. “Influence of water on the CO₂ capture mechanism, capacity and thermodynamic properties of aprotic heterocyclic anion ionic liquids.” 2020. Web. 02 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

-2661-6175. Influence of water on the CO₂ capture mechanism, capacity and thermodynamic properties of aprotic heterocyclic anion ionic liquids. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2020. [cited 2021 Mar 02]. Available from: http://dx.doi.org/10.26153/tsw/9111.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

-2661-6175. Influence of water on the CO₂ capture mechanism, capacity and thermodynamic properties of aprotic heterocyclic anion ionic liquids. [Doctoral Dissertation]. University of Texas – Austin; 2020. Available from: http://dx.doi.org/10.26153/tsw/9111

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Penn State University

19. Schesser, Jacob Glenn. The Photophysics of Anthracene and Bianthryl as Indicators of Nanoscale Structural Effects in Room Temperature Ionic Liquids.

Degree: 2013, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/19795

► The possible effects bulk structure in Room Temperature Ionic Liquids (RTILs) on the photochemistry and spectroscopic behavior of molecular solutes were investigated in relation to… (more)

Subjects/Keywords: Ionic Liquids; Structure in Ionic Liquids; Electron Transfer; Spectroscopy; Bianthryl; Anthracene

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APA (6^th Edition):

Schesser, J. G. (2013). The Photophysics of Anthracene and Bianthryl as Indicators of Nanoscale Structural Effects in Room Temperature Ionic Liquids. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/19795

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Schesser, Jacob Glenn. “The Photophysics of Anthracene and Bianthryl as Indicators of Nanoscale Structural Effects in Room Temperature Ionic Liquids.” 2013. Thesis, Penn State University. Accessed March 02, 2021. https://submit-etda.libraries.psu.edu/catalog/19795.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Schesser, Jacob Glenn. “The Photophysics of Anthracene and Bianthryl as Indicators of Nanoscale Structural Effects in Room Temperature Ionic Liquids.” 2013. Web. 02 Mar 2021.

Vancouver:

Schesser JG. The Photophysics of Anthracene and Bianthryl as Indicators of Nanoscale Structural Effects in Room Temperature Ionic Liquids. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Mar 02]. Available from: https://submit-etda.libraries.psu.edu/catalog/19795.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Schesser JG. The Photophysics of Anthracene and Bianthryl as Indicators of Nanoscale Structural Effects in Room Temperature Ionic Liquids. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/19795

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of KwaZulu-Natal

20. Matandabuzo, Mzukisi. Synthesis, characterization and evaluation of ionic liquids and polymeric ionic liquids/functionalized multiwalled carbon nanotubes for Cr(VI) adsorption.

Degree: 2019, University of KwaZulu-Natal

URL: https://researchspace.ukzn.ac.za/handle/10413/18137

► In this study, a series of imidazolium and pyridinium-based ionic liquids (ILs), polymeric ionic liquids (PILs), and their carbon nanotubes-functionalized composites were synthesized, characterized and… (more)

▼ In this study, a series of imidazolium and pyridinium-based ionic liquids (ILs), polymeric ionic liquids (PILs), and their carbon nanotubes-functionalized composites were synthesized, characterized and applied as potential adsorbents for hexavalent Cr(VI). Polymeric ionic liquids of different polymerizable moieties (vinyl and styrenic moieties) were studied. Furthermore, multi-walled carbon nanotubes (MWCNTs) were synthesized, characterized and dispersed on both imidazolium and pyridinium-based ILs and PILs, respectively. Thermal studies revealed that vinyl pyridinium PILs possess good thermal stability than the vinyl imidazolium counterparts. The size of the counter-anions bromide (Br-), hexafluorophosphate (PF6-), and bis(trifluoromethanesulfonyl) imide (TFSI-) and the charge delocalization in cationic rings greatly influenced the glass transition temperatures of PILs. Expectedly, pyridinium and imidazolium-based PILs with hexafluorophosphate ions showed poor solubility in polar protic solvents (water, methanol) and good solubility in polar aprotic solvents (DMSO, DMF, THF) except acetone (a dipolar aprotic solvent). The as-synthesized ILs/MWCNT composites were characterized using FTIR spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and thermal analysis. The results obtained indicate that the pyridinium-based ILs exhibited higher decomposition temperatures (above 400 °C) compared to imidazolium-based ILs counterparts (onset decomposition at 250 °C) with poor water-solubility and their glass transition temperatures were dependent on ion mobility. The effect of the alkyl lateral chain (propyl and isopropyl) at the first and third position of imidazolium and N-position of pyridinium cationic rings towards their thermal stability, conductivity, and solubility of the ionic liquids was investigated. Their solubilities in different polar and non-polar solvents were also investigated. Spectroscopic and microscopic analyses confirmed the formation of the ILs/MWCNT composites with new functionalities and unaltered surface morphology of carbon nanotubes. Pyridinium and imidazolium-based PILs/MWCNT composites were characterized by thermal, spectroscopic, and electron microscopy techniques. It was observed that the composites were thermally stable compared to the corresponding precursors and were insoluble in polar aprotic solvents. For application, solid-liquid adsorption process was used in the adsorption of Cr(VI) from aqueous solution using the as-synthesized ILs/MWCNT and PILs/MWCNT composites as adsorbents. Under batch adsorption experiments, the effect of solution pH, contact time and initial concentration of Cr(VI) were investigated. It was established that the adsorption of Cr(VI) took place under acidic conditions (pH=2-3), thereby confirming significant adsorption of dichromate (Cr2O7-) and hydrochromate (HCrO4-) anions. At lower pH values, the ionic and π-anionic electrostatic interactions between the positively-charged regions of the… Advisors/Committee Members: Ajibade, Peter Adewale. (advisor).

Subjects/Keywords: Ionic liquids.; Polymeric ionic liquids.; Multiwalled carbon nanotubes.; Cr(VI) adsorption.

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APA (6^th Edition):

Matandabuzo, M. (2019). Synthesis, characterization and evaluation of ionic liquids and polymeric ionic liquids/functionalized multiwalled carbon nanotubes for Cr(VI) adsorption. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/18137

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Matandabuzo, Mzukisi. “Synthesis, characterization and evaluation of ionic liquids and polymeric ionic liquids/functionalized multiwalled carbon nanotubes for Cr(VI) adsorption.” 2019. Thesis, University of KwaZulu-Natal. Accessed March 02, 2021. https://researchspace.ukzn.ac.za/handle/10413/18137.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Matandabuzo, Mzukisi. “Synthesis, characterization and evaluation of ionic liquids and polymeric ionic liquids/functionalized multiwalled carbon nanotubes for Cr(VI) adsorption.” 2019. Web. 02 Mar 2021.

Vancouver:

Matandabuzo M. Synthesis, characterization and evaluation of ionic liquids and polymeric ionic liquids/functionalized multiwalled carbon nanotubes for Cr(VI) adsorption. [Internet] [Thesis]. University of KwaZulu-Natal; 2019. [cited 2021 Mar 02]. Available from: https://researchspace.ukzn.ac.za/handle/10413/18137.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Matandabuzo M. Synthesis, characterization and evaluation of ionic liquids and polymeric ionic liquids/functionalized multiwalled carbon nanotubes for Cr(VI) adsorption. [Thesis]. University of KwaZulu-Natal; 2019. Available from: https://researchspace.ukzn.ac.za/handle/10413/18137

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Eastern Michigan University

21. Li, Shuziao. Polymerization of bromoundecylacrylate and alkylating methylimidazole.

Degree: MS, Engineering Technology, 2019, Eastern Michigan University

URL: https://commons.emich.edu/theses/961

► Polymerized ionic liquids (PIL) generally are solids, but a few examples have been reported that also exhibit liquidity in the neighborhood of room temperature… (more)

Subjects/Keywords: Liquid polymerized ionic liquids; Polymerized ionic liquids; Polymer Chemistry

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APA (6^th Edition):

Li, S. (2019). Polymerization of bromoundecylacrylate and alkylating methylimidazole. (Masters Thesis). Eastern Michigan University. Retrieved from https://commons.emich.edu/theses/961

Chicago Manual of Style (16^th Edition):

Li, Shuziao. “Polymerization of bromoundecylacrylate and alkylating methylimidazole.” 2019. Masters Thesis, Eastern Michigan University. Accessed March 02, 2021. https://commons.emich.edu/theses/961.

MLA Handbook (7^th Edition):

Li, Shuziao. “Polymerization of bromoundecylacrylate and alkylating methylimidazole.” 2019. Web. 02 Mar 2021.

Vancouver:

Li S. Polymerization of bromoundecylacrylate and alkylating methylimidazole. [Internet] [Masters thesis]. Eastern Michigan University; 2019. [cited 2021 Mar 02]. Available from: https://commons.emich.edu/theses/961.

Council of Science Editors:

Li S. Polymerization of bromoundecylacrylate and alkylating methylimidazole. [Masters Thesis]. Eastern Michigan University; 2019. Available from: https://commons.emich.edu/theses/961

University of Utah

22. Li, Zhe. Molecular dynamics simulation studies of ionic electrolytes for lithium ion batteries.

Degree: PhD, Materials Science & Engineering, 2012, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2070/rec/1625

► Molecular dynamics (MD) simulations of various room temperature ionic liquids (RTILs), RTIL/lithium salt mixtures, and RTIL/lithium salt/organic solvents mixtures have been conducted using a well-established… (more)

▼ Molecular dynamics (MD) simulations of various room temperature ionic liquids (RTILs), RTIL/lithium salt mixtures, and RTIL/lithium salt/organic solvents mixtures have been conducted using a well-established polarizable force field which demonstrated unprecedented accuracy and transferability in simulations of liquids, electrolytes, and polymers. The influence of inclusion atom polarizability on the accuracy of properties predicted from MD simulations of RTILs has been systematically investigated. Simulations of RTILs in which the atom-based polarizability was set to zero for all atoms (nonpolarizable model) resulted in changes in thermodynamic and dynamic properties from those predicted by the polarizable force field (polarizable model). Investigation of structural and dynamical correlations using both the polarizalbe and nonpolarizable model allowed us to obtain a mechanistic understanding of the influence of polarization on dynamics in the RTILs investigated. MD simulations of N-methyl-N-propylpyrrolidinium(pyr13) bis(trifluoromethanesulfonyl)imide(Ntf2) ionic liquid [pyr13][Ntf2] mixed with [Li][Ntf2] salt have been conducted at 363 K and 423 K. Mixture simulations with lithium salt mole fractions between 0% and 33% at 363 K and 423 K yield densities, ion self-diffusion coefficients, and ionic conductivities in very good agreement with available experimental data. The concentration dependence of Li+ solvation structure, conductivity, and diffusion mechanism has been successfully investigated. The organic solvents acetonitrile (ACN) and ethylene carbonate (EC) wereivadded into the [pyr13][Ntf2]/[Li][Ntf2] mixtures at two concentrations (20 mol% and 40 mol%). Ion mobility was found to be improved in the diluted electrolytes. In addition, EC and ACN molecules were found to be able to influence the coordination structure and diffusion mechanism of Li+ cations. The interfacial structures of the mixtures near charged and uncharged graphite electrode have been exposed as well, using an electroactive interface molecular dynamics simulation methodology. Multilayer structures were observed near the atomically flat graphite electrodes. The orientations of the components in the mixtures near the charged and uncharged surface were discussed thoroughly.

Subjects/Keywords: Ionic liquids; Lithium ion batteries; Molecular dynamics

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APA (6^th Edition):

Li, Z. (2012). Molecular dynamics simulation studies of ionic electrolytes for lithium ion batteries. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2070/rec/1625

Chicago Manual of Style (16^th Edition):

Li, Zhe. “Molecular dynamics simulation studies of ionic electrolytes for lithium ion batteries.” 2012. Doctoral Dissertation, University of Utah. Accessed March 02, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2070/rec/1625.

MLA Handbook (7^th Edition):

Li, Zhe. “Molecular dynamics simulation studies of ionic electrolytes for lithium ion batteries.” 2012. Web. 02 Mar 2021.

Vancouver:

Li Z. Molecular dynamics simulation studies of ionic electrolytes for lithium ion batteries. [Internet] [Doctoral dissertation]. University of Utah; 2012. [cited 2021 Mar 02]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2070/rec/1625.

Council of Science Editors:

Li Z. Molecular dynamics simulation studies of ionic electrolytes for lithium ion batteries. [Doctoral Dissertation]. University of Utah; 2012. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/2070/rec/1625

Universidade Nova

23. Avó, João Miguel Ribeiro. Photochemical control of rheology.

Degree: 2015, Universidade Nova

URL: https://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/14065

► The main objective of the research work developed in the framework of this PhD thesis was the preparation and development of novel photorheological fluids. This… (more)

Subjects/Keywords: Photochemistry; Photopolymerization; Photorheology; Ionic liquids; Coumarins

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APA (6^th Edition):

Avó, J. M. R. (2015). Photochemical control of rheology. (Thesis). Universidade Nova. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/14065

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Avó, João Miguel Ribeiro. “Photochemical control of rheology.” 2015. Thesis, Universidade Nova. Accessed March 02, 2021. https://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/14065.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Avó, João Miguel Ribeiro. “Photochemical control of rheology.” 2015. Web. 02 Mar 2021.

Vancouver:

Avó JMR. Photochemical control of rheology. [Internet] [Thesis]. Universidade Nova; 2015. [cited 2021 Mar 02]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/14065.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Avó JMR. Photochemical control of rheology. [Thesis]. Universidade Nova; 2015. Available from: https://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/14065

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Νταής, Σπυρίδων. Μελέτη του εγκλωβισμού ιονικών υγρών σε ζεόλιθους : φυσικοχημικός & ηλεκτροχημικός χαρακτηρισμός.

Degree: 2011, University of Patras

URL: http://hdl.handle.net/10889/4929

►

Οι ζεόλιθοι είναι μικροπορώδεις αργιλοπυριτικές κρυσταλλικές ενώσεις οι οποίες αποτελούνται απο τετράεδρα SiO4 και AlO4 που σχηματίζουν κρυσταλλικά πλέγματα σε μία, δύο ή τρείς διαστάσεις.… (more)

▼

Οι ζεόλιθοι είναι μικροπορώδεις αργιλοπυριτικές κρυσταλλικές ενώσεις οι οποίες αποτελούνται απο τετράεδρα SiO4 και AlO4 που σχηματίζουν κρυσταλλικά πλέγματα σε μία, δύο ή τρείς διαστάσεις. Εξαιτίας των μοναδικών φυσικοχημικών ιδιοτήτων τους, οι ζεόλιθοι σήμερα χρησιμοποιούνται σε ένα μεγάλο πλήθος εφαρμογών τόσο σε βιομηχανικό όσο και σε εργαστηριακό επίπεδο. Από την άλλη μεριά, ώς ιονικά υγρά ορίζονται οι ιοντικές ενώσεις (άλατα) εκείνες οι οποίες στη θερμοκρασία δωματίου βρίσκονται στην υγρή φάση. Η αμελητέα τάση ατμών, το χαμηλό σημείο τήξεως και οι εξαιρετικές ηλεκτρικές ιδιότητες τους έχουν οδηγήσει στην ολοένα και πιο ευρεία εφαρμογή τους. Ο σκοπός της παρούσας διατριβής είναι η μελέτη του εγκλωβισμού Ιονικών Υγρών σε ζεόλιθο και ο χαρακτηρισμός των παραγόμενων σύνθετων υλικών. Στο πρώτο μέρος της παρούσα διατριβής συνετέθησαν δύο διαφορετικοί ζεόλιθοι και πιο συγκεκριμένα NaY-FAU και BEA με τρείς διαφορετικές αναλογίες Si/Al (250, 50 και 25). Οι παραγόμενοι ζεόλιθοι χαρακτηρίστηκαν με Φασματοσκοπία Περίθλασης Ακτίνων-Χ (XRD), Ηλεκτρονική Μικροσκοπία Σάρωσης (SEM) και φυσιορόφηση Ν2. Στο δεύτερο μέρος της παρούσας διατριβής έγινε μελέτη του εγκλωβισμού ΙΥ σε ζεόλιθο. Πιο συγκεκριμένα μελετήθηκε ο εγκλωβισμός του 1-Η-3-μεθυλιμιδαζολο τριφθορομεθανοσουλφόνυλο ιμιδίου στο ζεόλιθο NaY-FAU. Tα προκύπτοντα σύνθετα υλικά ΙΥ/Ζ τόσο ως προς τις φυσικοχημικές αλλά και ως προς τις ηλεκτροχημικές τους ιδιότητες. Πιο συγκεκριμένα, μελετήθηκαν 2 διαφορετικές μέθοδοι εγκλωβισμού του ΙΥ στο ζεόλιθο NaY-FAU: απευθείας προσθήκη του ΙΥ στον απαερωμένο ζεόλιθο (Μέθοδος 1) και με διάλυση αρχικά του ΙΥ σε MeOH και προσθήκη του ζεόλιθου στο διάλυμα (Μέθοδος 2) και μελετήθηκε η επίδραση της αρχική αναλογία ΙΥ/Ζ και της επίδρασης της διάρκειας της εκχύλισης Soxhlet στη ποσότητα του ΙΥ που παραμένει εγκλωβισμένο και στη δομή του τελικού προϊόντος. Τέλος τα προκύπτοντα συστήματα ΙΥ/Ζ χαρακτηρίστηκαν ως προς την ιοντική τους αγωγιμότητα με Φασματοσκοπίa Σύνθετης Αντίστασης (Α. C. Impedance Spectroscopy).

Zeolites are microporous crystalline compounds that are cosntituted by SiO4 and AlO4 tetrahedra thus forming crystalline structures in one, two or three dimensions. Due to their unique physicochemical properties zeolites are widely used in industrial and laboratory applications. On the other hand, Ionic Liquids are liquids that are liquids at room temperature. Their negligible vapour pressure, the low melting point and their unique electrochemical properties have caused their extensive use in different applications. The scope of this thesis is to study the encapsulation of Ionic Liquids into zeolite structure and the characterization of the obtained composite materials. The first part presents the synthesis and characterization of two different zeolites: NaY-FAU and BEA with three different Si/Al ratio (250, 50 and 25). The obtained zeolites were characterized using X-Ray Diffraction Spectroscopy, Scanning Electron Microscopy, N2 physisorption and Thermogravimetric Analysis. In the second part, the encapsulation of…

Advisors/Committee Members: Κορδούλης, Χρήστος, Ntais, Spyridon, Λυκουργιώτης, Αλέξης, Νικολάκης, Βλαδίμηρος.

Subjects/Keywords: Ιονικά υγρά; Ζεόλιθοι; 541.224; Ionic liquids; Zeolites

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APA (6^th Edition):

Νταής, �. (2011). Μελέτη του εγκλωβισμού ιονικών υγρών σε ζεόλιθους : φυσικοχημικός & ηλεκτροχημικός χαρακτηρισμός. (Masters Thesis). University of Patras. Retrieved from http://hdl.handle.net/10889/4929

Chicago Manual of Style (16^th Edition):

Νταής, Σπυρίδων. “Μελέτη του εγκλωβισμού ιονικών υγρών σε ζεόλιθους : φυσικοχημικός & ηλεκτροχημικός χαρακτηρισμός.” 2011. Masters Thesis, University of Patras. Accessed March 02, 2021. http://hdl.handle.net/10889/4929.

MLA Handbook (7^th Edition):

Νταής, Σπυρίδων. “Μελέτη του εγκλωβισμού ιονικών υγρών σε ζεόλιθους : φυσικοχημικός & ηλεκτροχημικός χαρακτηρισμός.” 2011. Web. 02 Mar 2021.

Vancouver:

Νταής �. Μελέτη του εγκλωβισμού ιονικών υγρών σε ζεόλιθους : φυσικοχημικός & ηλεκτροχημικός χαρακτηρισμός. [Internet] [Masters thesis]. University of Patras; 2011. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10889/4929.

Council of Science Editors:

Νταής �. Μελέτη του εγκλωβισμού ιονικών υγρών σε ζεόλιθους : φυσικοχημικός & ηλεκτροχημικός χαρακτηρισμός. [Masters Thesis]. University of Patras; 2011. Available from: http://hdl.handle.net/10889/4929

University of Manchester

25. Oster, Kamil. Ionic Liquid - Based Nanofluids for Thermal Application.

Degree: 2018, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316874

►

Heat transfer fluids are materials responsible for heat distribution, transfer and storage. Their significance is undeniable - many technological processes cannot be carried out without… (more)

▼

Heat transfer fluids are materials responsible for heat distribution, transfer and storage. Their significance is undeniable - many technological processes cannot be carried out without using heat transfer materials (for example due to overheating). These are usually mixtures of many compounds, for example glycols, silicones or water. Today's technologies constantly require more efficient, environmentally- and economically-friendly solutions for heat transfer applications. It is necessary to know the full physicochemical characteristics to design a new heat transfer fluid (mainly density, heat capacity, viscosity and thermal conductivity). Nanofluids (mixture of a basefluid and nanoparticles) were proposed as a solution for many industrial issues due to their enhanced thermophysical properties (i.e. thermal conductivity) than pure liquids. Moreover, these enhancements exhibit unusual features which make this group of materials interesting from molecular and industrial point of view. Ionic liquids, task specific materials with tuneable properties were repeatedly recommended as heat transfer fluids due to their specific properties (mainly low vapour pressure, wide liquidus range, or non-flammability) caused by the ionic structure. A very interesting material can be obtained by mixing ionic liquids and nanoparticles where specific properties of ionic liquids are preserved, and thermophysical properties are enhanced due to nanoparticles dispersion. In this work, we investigated ionic liquid - based nanofluids from the experimental and theoretical point of view, including imidazolium-, pyrrolidinium- and phosphonium-based ionic liquids with several different anions, and multiwalled carbon nanotubes, graphite, boron nitride and mesoporous carbon as nanoparticles, and also in mixtures with water. As a final result, we assessed the molecular recognition of the thermophysical properties enhancements in ionanofluids, developed the predictive models for physical properties, compared all investigated systems to commercial heat transfer fluids. The project was supported by King Faisal University (Saudi Arabia) through a research fund from the International Cooperation and Knowledge Exchange Administration department at KFU. Cytec are thanked for the generous donation of the trihexyl(tetradecyl)phosphonium chloride sample.

CD-ROM containing supplementary physical properties data materials submitted in pocket inside back cover of print version of thesis.

Advisors/Committee Members: GONZALEZ MIQUEL, MARIA M, Hardacre, Christopher, Gonzalez Miquel, Maria.

Subjects/Keywords: Ionic Liquids; Nanoparticles; Nanofluids; Heat Transfer Fluids

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Oster, K. (2018). Ionic Liquid - Based Nanofluids for Thermal Application. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316874

Chicago Manual of Style (16^th Edition):

Oster, Kamil. “Ionic Liquid - Based Nanofluids for Thermal Application.” 2018. Doctoral Dissertation, University of Manchester. Accessed March 02, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316874.

MLA Handbook (7^th Edition):

Oster, Kamil. “Ionic Liquid - Based Nanofluids for Thermal Application.” 2018. Web. 02 Mar 2021.

Vancouver:

Oster K. Ionic Liquid - Based Nanofluids for Thermal Application. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Mar 02]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316874.

Council of Science Editors:

Oster K. Ionic Liquid - Based Nanofluids for Thermal Application. [Doctoral Dissertation]. University of Manchester; 2018. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316874

Vanderbilt University

26. Zhang, Yu. Molecular Dynamics Study of Electric Double Layer Capacitors: Modifying Electrode and Electrolyte Composition.

Degree: PhD, Chemical Engineering, 2019, Vanderbilt University

URL: http://hdl.handle.net/1803/12289

► Electric double layer capacitors (EDLCs) are energy storage devices that are the subject of active research due to high power density, moderate energy density, broad… (more)

▼ Electric double layer capacitors (EDLCs) are energy storage devices that are the subject of active research due to high power density, moderate energy density, broad operating temperature windows, and long cycle lifetimes. Distinct from batteries, which convert external energy to charges through redox reactions, EDLCs store charge by electrosorption of ions from electrolyte onto an electrode surface, resulting in an electric double layer. This physical charge storage mechanism enables EDLCs to yield greater power densities over batteries, but also limits their energy density. The past few years has seen a huge increase in the performance of supercapacitors due to the discovery of novel electrode and electrolyte materials, better understanding of charging/discharging mechanisms, as well as more intelligent design of hybrid systems. In this work, molecular dynamics (MD) simulations were conducted to study the performance of carbon-based EDLCs. We applied different modifications to the carbon-based materials, including nitrogen doping, edge sites, and surface oxidization, and evaluated their corresponding influences on the performance. Nitrogen doping and edge sites were both found to be effective to increases the capacitance of graphene-based EDLCs, but both of these modifications needed careful selection of doping/edge configurations. While oxidizations on nonporous carbon electrodes decreased capacitance, oxidizations in porous confinements exhibited different influences on small pores (0.8 nm) and large pores (2.6 nm). In addition, we investigated the effects of electrolyte composition and concentration on the capacitance and ion dynamics on various carbon electrodes. It was found that the increase of cation size decreased the capacitance and ion dynamics. Moreover, solvation of ionic liquid electrolytes drastically enhanced ion dynamics, but its effects on capacitance depended on the specific carbon electrodes used. Advisors/Committee Members: Carglar Oskay (committee member), Clare McCabe (committee member), Rizia Bardhan (committee member), Peter T. Cummings (Committee Chair).

Subjects/Keywords: Supercapacitor; MD simulation; Ionic liquids; Carbon materials

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, Y. (2019). Molecular Dynamics Study of Electric Double Layer Capacitors: Modifying Electrode and Electrolyte Composition. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/12289

Chicago Manual of Style (16^th Edition):

Zhang, Yu. “Molecular Dynamics Study of Electric Double Layer Capacitors: Modifying Electrode and Electrolyte Composition.” 2019. Doctoral Dissertation, Vanderbilt University. Accessed March 02, 2021. http://hdl.handle.net/1803/12289.

MLA Handbook (7^th Edition):

Zhang, Yu. “Molecular Dynamics Study of Electric Double Layer Capacitors: Modifying Electrode and Electrolyte Composition.” 2019. Web. 02 Mar 2021.

Vancouver:

Zhang Y. Molecular Dynamics Study of Electric Double Layer Capacitors: Modifying Electrode and Electrolyte Composition. [Internet] [Doctoral dissertation]. Vanderbilt University; 2019. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1803/12289.

Council of Science Editors:

Zhang Y. Molecular Dynamics Study of Electric Double Layer Capacitors: Modifying Electrode and Electrolyte Composition. [Doctoral Dissertation]. Vanderbilt University; 2019. Available from: http://hdl.handle.net/1803/12289

27. Sawant, Anand D. Synthesis and applications of spin labeled Oligonucleotides and ionic liquids;.

Degree: Chemistry, 2010, Shivaji University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/4288

None

Synopsis included, References included in chapters

Advisors/Committee Members: Salunkhe, Manikrao M.

Subjects/Keywords: Chemistry; Ionic liquids

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APA (6^th Edition):

Sawant, A. D. (2010). Synthesis and applications of spin labeled Oligonucleotides and ionic liquids;. (Thesis). Shivaji University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/4288

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sawant, Anand D. “Synthesis and applications of spin labeled Oligonucleotides and ionic liquids;.” 2010. Thesis, Shivaji University. Accessed March 02, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/4288.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sawant, Anand D. “Synthesis and applications of spin labeled Oligonucleotides and ionic liquids;.” 2010. Web. 02 Mar 2021.

Vancouver:

Sawant AD. Synthesis and applications of spin labeled Oligonucleotides and ionic liquids;. [Internet] [Thesis]. Shivaji University; 2010. [cited 2021 Mar 02]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4288.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sawant AD. Synthesis and applications of spin labeled Oligonucleotides and ionic liquids;. [Thesis]. Shivaji University; 2010. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4288

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Federal de Santa Maria

28. Emerson Adriano Guarda. UTILIZAÇÃO DE LÍQUIDOS IÔNICOS NA SÍNTESE DE ENONAS E DE ENAMINONAS.

Degree: 2009, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2511

►

Esta tese descreve a utilização dos líquidos iônicos tetrafluorborato de 1-butil-3-metilimidazolium ([BMIM] [BF4]) e hexafluorfosfato de 1-butil-3-metilimidazolium ([BMIM][PF6]) como solventes catalíticos na síntese de 1,1,1-tricloro(fluor)-3-alquen-2-onas… (more)

▼

Esta tese descreve a utilização dos líquidos iônicos tetrafluorborato de 1-butil-3-metilimidazolium ([BMIM] [BF4]) e hexafluorfosfato de 1-butil-3-metilimidazolium ([BMIM][PF6]) como solventes catalíticos na síntese de 1,1,1-tricloro(fluor)-3-alquen-2-onas [CX3C(O)C(R2)=C(R1)OR] a partir da reação de enoléteres ou acetais com haletos de acila. Os resultados obtidos com líquidos iônicos foram comparados com os obtidos por método convencional já desenvolvido em nosso laboratório, e demonstraram grande melhora nos tempos reacionais e manutenção dos bons rendimentos. Os líquidos iônicos também foram utilizados em reações de enoléteres com acilantes menos reativos como cloreto de acetila e cloreto de benzoíla, provando ser bons meios catalíticos neste tipo de reação. Os líquidos iônicos foram utilizados como meio para a síntese de trifluoro[cloro]metil β-enaminonas a partir de 1,1,1-tricloro(fluor)-3-alquen-2-onas. Também foi avaliada a reutilização dos líquidos iônicos (recarga) após as reações mencionadas. Em todos os casos, após a recarga os tempos reacionais foram mantidos sem perda significativa nos rendimentos.

The use of ionic liquids 1-butyl-3-methylimidazolium tetrafluorborate ([BMIM] [BF4]) and 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) as catalytic solvent in the synthesis of 1,1,1-trichloro(fluoro)-3-alken-2-onas [CX3C(O)C(R2)=C(R1)OR] from the reaction of enolethers or acetals with acyl halides is reported. The results obtained in the presence of ionic liquids were compared with those obtained in the conventional condition already developed in our laboratory, and they demonstrated great improvement in the reaction times, with maintenance of the good yields. Ionic liquids also were used in the reactions of enolethers with poor reactive acylants, as acetyl chloride and benzoyl chloride, proving its efficiency as catalytic media in this reaction type. The ionic liquids were still used as medium in the synthesis of β-enaminones bearing a trifluoro[chloro]methyl starting from the 1,1,1-trichloro(fluoro)-3-alken-2-ones. It was also evaluated the reutilization of the ionic liquids (recharge) after the reactions mentioned above. In all of the cases of recharge there was the maintenance of the times reacionais without significant loss of yield.

Advisors/Committee Members: Nilo Zanatta, Alex Fabiani Claro Flores, Marcos Antonio Pinto Martins, Daniel Jacintho Emmerich, Wilson João Cunico Filho.

Subjects/Keywords: acetals; acylation; enol ethers; ionic liquids; QUIMICA

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APA (6^th Edition):

Guarda, E. A. (2009). UTILIZAÇÃO DE LÍQUIDOS IÔNICOS NA SÍNTESE DE ENONAS E DE ENAMINONAS. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2511

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Guarda, Emerson Adriano. “UTILIZAÇÃO DE LÍQUIDOS IÔNICOS NA SÍNTESE DE ENONAS E DE ENAMINONAS.” 2009. Thesis, Universidade Federal de Santa Maria. Accessed March 02, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2511.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Guarda, Emerson Adriano. “UTILIZAÇÃO DE LÍQUIDOS IÔNICOS NA SÍNTESE DE ENONAS E DE ENAMINONAS.” 2009. Web. 02 Mar 2021.

Vancouver:

Guarda EA. UTILIZAÇÃO DE LÍQUIDOS IÔNICOS NA SÍNTESE DE ENONAS E DE ENAMINONAS. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2009. [cited 2021 Mar 02]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2511.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Guarda EA. UTILIZAÇÃO DE LÍQUIDOS IÔNICOS NA SÍNTESE DE ENONAS E DE ENAMINONAS. [Thesis]. Universidade Federal de Santa Maria; 2009. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2511

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

29. Phung, Vy 1993-. FORMATION OF CYCLIC CARBONATES FROM ALKENES AND CO2 USING GOLD NANOPARTICLE CATALYSTS STABILIZED IN TETRAALKYLPHOSPHONIUM IONIC LIQUIDS.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/8615

► Cyclic carbonates have found extensive uses in numerous industrial applications. Conventional methods for cyclic carbonate formation, however, often employ toxic phosgene precursors in which hydrochloric… (more)

▼ Cyclic carbonates have found extensive uses in numerous industrial applications. Conventional methods for cyclic carbonate formation, however, often employ toxic phosgene precursors in which hydrochloric acid is being produced as a by‑product. In recent years, routes for the direct synthesis of cyclic carbonates from alkenes instead of epoxides have been sought due to the lower cost and greater availability of alkenes as the starting materials. Among the investigated catalysts, gold nanoparticles (Au NPs) have shown excellent catalytic activity for alkene epoxidation as they allow rapid chemical transformations, and are less prone to over-oxidation and self-poisoning during selective oxidation reactions. Highly stable Au NPs were synthesized in the trihexyl(tetradecyl)phosphonium chloride ionic liquid ([P66614][Cl] IL), a greener alternative to traditional volatile organic solvents. This composite system is novel as the Au NPs act as the catalyst for the epoxidation of alkenes, whereas the IL functions as a solvent for CO2 and a catalyst for the ring-opening of the intermediate epoxides and CO2 (via the chloride nucleophile). The focus of this thesis is to optimize the conditions needed for the one-pot activation of alkenes and CO2 to form cyclic carbonates via studying the required conditions for each reaction. It was found that while epoxidation of alkenes such as propylene and styrene by tert-butyl hydroperoxide can be catalyzed by Au NPs stabilized in the IL solvent, care has to be taken to ensure that the NPs do not get oxidized during the reaction. The cyclic carbonate reaction was found to be effectively catalyzed by the IL chloride anion and has pseudo-first order kinetics with respect to CO2. Increased rates and conversions were further seen at elevated CO2 pressures (i.e. 2.4 MPa), and stirring the system at 600 rpm helped to take the reaction out of the mass-transfer limited range. The established reaction conditions were then being examined for the direct synthesis of cyclic carbonates from alkenes and CO2. Moderate conversion and selectivity were observed. A non-halide tetraalkylphosphonium IL, trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide ([P66614][NTf2]), was also tested to compare with [P66614][Cl] for the same reaction. Advisors/Committee Members: Scott, Robert W. J., Sanders, David, Grosvenor, Andrew P., Abdelrasoul, Amira.

Subjects/Keywords: Ionic Liquids; Cyclic Carbonates; Gold Nanoparticles

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APA (6^th Edition):

Phung, V. 1. (2018). FORMATION OF CYCLIC CARBONATES FROM ALKENES AND CO2 USING GOLD NANOPARTICLE CATALYSTS STABILIZED IN TETRAALKYLPHOSPHONIUM IONIC LIQUIDS. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/8615

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Phung, Vy 1993-. “FORMATION OF CYCLIC CARBONATES FROM ALKENES AND CO2 USING GOLD NANOPARTICLE CATALYSTS STABILIZED IN TETRAALKYLPHOSPHONIUM IONIC LIQUIDS.” 2018. Thesis, University of Saskatchewan. Accessed March 02, 2021. http://hdl.handle.net/10388/8615.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Phung, Vy 1993-. “FORMATION OF CYCLIC CARBONATES FROM ALKENES AND CO2 USING GOLD NANOPARTICLE CATALYSTS STABILIZED IN TETRAALKYLPHOSPHONIUM IONIC LIQUIDS.” 2018. Web. 02 Mar 2021.

Vancouver:

Phung V1. FORMATION OF CYCLIC CARBONATES FROM ALKENES AND CO2 USING GOLD NANOPARTICLE CATALYSTS STABILIZED IN TETRAALKYLPHOSPHONIUM IONIC LIQUIDS. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10388/8615.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Phung V1. FORMATION OF CYCLIC CARBONATES FROM ALKENES AND CO2 USING GOLD NANOPARTICLE CATALYSTS STABILIZED IN TETRAALKYLPHOSPHONIUM IONIC LIQUIDS. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/8615

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

30. Sun, Rui. Polymerized Ionic Liquid Derived Carbon.

Degree: MS, Chemical Engineering, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/157830

► The development of new carbon-based materials with exquisite control over surface chemistry, carbon structure and form, surface area, pore size, and conductivity is of significant… (more)

Subjects/Keywords: Nitrogen-doped carbon; polymerized ionic liquids

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sun, R. (2016). Polymerized Ionic Liquid Derived Carbon. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/157830

Chicago Manual of Style (16^th Edition):

Sun, Rui. “Polymerized Ionic Liquid Derived Carbon.” 2016. Masters Thesis, Texas A&M University. Accessed March 02, 2021. http://hdl.handle.net/1969.1/157830.

MLA Handbook (7^th Edition):

Sun, Rui. “Polymerized Ionic Liquid Derived Carbon.” 2016. Web. 02 Mar 2021.

Vancouver:

Sun R. Polymerized Ionic Liquid Derived Carbon. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1969.1/157830.

Council of Science Editors:

Sun R. Polymerized Ionic Liquid Derived Carbon. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/157830

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