subject:(Metal catalysts)

Hong Kong University of Science and Technology

1. Tam, Yik. NHC-catalyzed allenoate synthesis and palladium nanospheres in Suzuki cross-couplings.

Degree: 2011, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-7631 ; https://doi.org/10.14711/thesis-b1169525 ; http://repository.ust.hk/ir/bitstream/1783.1-7631/1/th_redirect.html

► This first chapter describes a new synthetic method for the synthesis of allenoates from alkynals catalyzed by N-heterocyclic carbene. This persistent carbene is relatively more… (more)

Subjects/Keywords: Metal catalysts ; Palladium catalysts ; Organic compounds – Synthesis

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APA (6^th Edition):

Tam, Y. (2011). NHC-catalyzed allenoate synthesis and palladium nanospheres in Suzuki cross-couplings. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-7631 ; https://doi.org/10.14711/thesis-b1169525 ; http://repository.ust.hk/ir/bitstream/1783.1-7631/1/th_redirect.html

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):

Tam, Yik. “NHC-catalyzed allenoate synthesis and palladium nanospheres in Suzuki cross-couplings.” 2011. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-7631 ; https://doi.org/10.14711/thesis-b1169525 ; http://repository.ust.hk/ir/bitstream/1783.1-7631/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Tam, Yik. “NHC-catalyzed allenoate synthesis and palladium nanospheres in Suzuki cross-couplings.” 2011. Web. 20 Jan 2021.

Vancouver:

Tam Y. NHC-catalyzed allenoate synthesis and palladium nanospheres in Suzuki cross-couplings. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2011. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-7631 ; https://doi.org/10.14711/thesis-b1169525 ; http://repository.ust.hk/ir/bitstream/1783.1-7631/1/th_redirect.html.

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

Council of Science Editors:

Tam Y. NHC-catalyzed allenoate synthesis and palladium nanospheres in Suzuki cross-couplings. [Thesis]. Hong Kong University of Science and Technology; 2011. Available from: http://repository.ust.hk/ir/Record/1783.1-7631 ; https://doi.org/10.14711/thesis-b1169525 ; http://repository.ust.hk/ir/bitstream/1783.1-7631/1/th_redirect.html

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

Ryerson University

2. Luk, Yee-Yue Grace. Studies of polymerization of α-olefins carried out with a tri-nuclear nickel cluster.

Degree: 2014, Ryerson University

URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A3356

► Green coloured crystals of μ3-chloro-μ3-hydroxotris (μ-chloro) tris(N,N,N’,N’ –tetramethyl ethylene-1,2-diamine) trinickel(II) chloride (1) were synthesized and used as a pre-catalyst, along with methylaluminoxane (MAO) as an… (more)

Subjects/Keywords: Polymerization.; Metal catalysts.; Alkenes.

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APA (6^th Edition):

Luk, Y. G. (2014). Studies of polymerization of α-olefins carried out with a tri-nuclear nickel cluster. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A3356

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):

Luk, Yee-Yue Grace. “Studies of polymerization of α-olefins carried out with a tri-nuclear nickel cluster.” 2014. Thesis, Ryerson University. Accessed January 20, 2021. https://digital.library.ryerson.ca/islandora/object/RULA%3A3356.

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

MLA Handbook (7^th Edition):

Luk, Yee-Yue Grace. “Studies of polymerization of α-olefins carried out with a tri-nuclear nickel cluster.” 2014. Web. 20 Jan 2021.

Vancouver:

Luk YG. Studies of polymerization of α-olefins carried out with a tri-nuclear nickel cluster. [Internet] [Thesis]. Ryerson University; 2014. [cited 2021 Jan 20]. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A3356.

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

Council of Science Editors:

Luk YG. Studies of polymerization of α-olefins carried out with a tri-nuclear nickel cluster. [Thesis]. Ryerson University; 2014. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A3356

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

University of Johannesburg

3. Nemanashi, Mulisa Shepherd. Synthesis and characterization of Ag, Au and Cu dendrimer-encapsulated nanoparticles as well as their application in catalysis.

Degree: 2012, University of Johannesburg

URL: http://hdl.handle.net/10210/8097

►

M.Sc. (Chemistry)

In this dissertation the synthesis, characterization and the application of Ag, Au and Cu dendrimer encapsulated nanoparticles (DENs) in catalysis are described. Ag,… (more)

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M.Sc. (Chemistry)

In this dissertation the synthesis, characterization and the application of Ag, Au and Cu dendrimer encapsulated nanoparticles (DENs) in catalysis are described. Ag, Au and Cu-DENs were synthesized using G4-G6 PAMAM-OH and G4-G6 PAMAM-NH2 dendrimers as templates as well as stabilizers. NaBH4 was used as a reducing agent for the synthesis of DENs. Binding studies were carried out in order to determine the maximum capacity of the dendrimer to which the metal ions can be added. These binding studies were performed using UV-vis spectroscopy. The synthesis of these nanoparticles (NPs) was carried out at room temperature. For the synthesis of Ag and Au-DENs with PAMAM-NH2 dendrimers, the pH of the aqueous dendrimer solution was first adjusted to acidic condition (~pH 2) using HCl before the addition of the respective metal ion precursor to the dendrimer. This is done to avoid coordination of the metal ions to the primary amine groups on the periphery of the dendrimer, which might lead to particle agglomeration. These prepared DENs were characterized by UV-vis spectroscopy and high resolution transmission (HRTEM) microscopy. The synthesized DENs were evaluated as catalysts in the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. This reaction was monitored by UV-vis spectroscopy by following the absorbance at 400 nm These DENs were all found to be active catalysts for the afore-mentioned process. The rate constant for the reduction process was observed to decrease as the concentration of 4-nitrophenol increased. As the concentration of NaBH4 is increased, the rate constant was also found to increase, however this increase was only observed to a maximum concentration of NaBH4. The Au-DENs prepared using G4 PAMAM-NH2 dendrimers were subsequently immobilized onto a titania support via the sol-gel (Ti-Au-s) and wetness impregnation (Ti-Au-w) methods. The titania supported Au NPs were characterized using HRTEM, powder X-ray diffraction (PXRD), thermal gravimetric analysis (TGA), inductive coupled plasma-optical emission spectroscopy (ICP-OES) and Brunauer Emmett Teller (BET) surface area analysis. The dendrimer template was removed by calcining at 500 °C. The catalytic activity of these supported Au NPs was investigated in the oxidation of styrene using tert-butyl hydroperoxide (TBHP) as an oxidant. Benzaldehyde and styrene oxide were observed as the major products. The catalyst prepared by wetness impregnation method was found to give the highest styrene conversion as compared to the one prepared via sol-gel method. At 60 °C, the catalyst prepared by sol-gel method was found to selectively produce benzaldehyde while on the other hand, the catalyst prepared by wetness impregnation selectively produce styrene oxide. The highest conversion of styrene was observed at 70 °C for both catalysts. Ti-Au-w catalyst was generally found to give the highest styrene conversion.

Subjects/Keywords: Nanoparticles; Dendrimers; Metal catalysts

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APA (6^th Edition):

Nemanashi, M. S. (2012). Synthesis and characterization of Ag, Au and Cu dendrimer-encapsulated nanoparticles as well as their application in catalysis. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/8097

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):

Nemanashi, Mulisa Shepherd. “Synthesis and characterization of Ag, Au and Cu dendrimer-encapsulated nanoparticles as well as their application in catalysis.” 2012. Thesis, University of Johannesburg. Accessed January 20, 2021. http://hdl.handle.net/10210/8097.

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

MLA Handbook (7^th Edition):

Nemanashi, Mulisa Shepherd. “Synthesis and characterization of Ag, Au and Cu dendrimer-encapsulated nanoparticles as well as their application in catalysis.” 2012. Web. 20 Jan 2021.

Vancouver:

Nemanashi MS. Synthesis and characterization of Ag, Au and Cu dendrimer-encapsulated nanoparticles as well as their application in catalysis. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10210/8097.

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

Council of Science Editors:

Nemanashi MS. Synthesis and characterization of Ag, Au and Cu dendrimer-encapsulated nanoparticles as well as their application in catalysis. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/8097

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

University of Johannesburg

4. Bredenkamp, Tyler. Metal triflates as alternative catalytic promoters to Brønsted acids in carbonylation chemistry.

Degree: 2014, University of Johannesburg

URL: http://hdl.handle.net/10210/11376

►

Ph.D. (Chemistry)

The thesis presented here is focussed on the methoxycarbonylation reaction. The reaction requires a catalyst (most of often palladium), a co-catalyst (typically Brønsted… (more)

Subjects/Keywords: Metal carbonyls; Catalysts; Acids

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APA (6^th Edition):

Bredenkamp, T. (2014). Metal triflates as alternative catalytic promoters to Brønsted acids in carbonylation chemistry. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/11376

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):

Bredenkamp, Tyler. “Metal triflates as alternative catalytic promoters to Brønsted acids in carbonylation chemistry.” 2014. Thesis, University of Johannesburg. Accessed January 20, 2021. http://hdl.handle.net/10210/11376.

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

MLA Handbook (7^th Edition):

Bredenkamp, Tyler. “Metal triflates as alternative catalytic promoters to Brønsted acids in carbonylation chemistry.” 2014. Web. 20 Jan 2021.

Vancouver:

Bredenkamp T. Metal triflates as alternative catalytic promoters to Brønsted acids in carbonylation chemistry. [Internet] [Thesis]. University of Johannesburg; 2014. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10210/11376.

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

Council of Science Editors:

Bredenkamp T. Metal triflates as alternative catalytic promoters to Brønsted acids in carbonylation chemistry. [Thesis]. University of Johannesburg; 2014. Available from: http://hdl.handle.net/10210/11376

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

Columbia University

5. Rauch, Michael S. Main Group Metal Hydride, Alkyl and Fluoride Complexes: Towards CO2 Functionalization with Earth Abundant Metals.

Degree: 2019, Columbia University

URL: https://doi.org/10.7916/d8-t4qw-ak42

► As levels of carbon dioxide continue to increase in the atmosphere, it is appealing to consider the prospect of utilizing CO2 as a C1 building… (more)

▼ As levels of carbon dioxide continue to increase in the atmosphere, it is appealing to consider the prospect of utilizing CO2 as a C1 building block for the synthesis of value-added organic chemicals. Such transformations offer potential to directly counteract environmental concerns, and could also enhance the recyclability of current materials. To meet this challenge, the development of metal catalysts capable of promoting the functionalization of carbon dioxide is necessary. Furthermore, there is great interest in employing main group metals for these transformations, particularly those metals that are earth-abundant, non-toxic and affordable. To address these needs and others, the research herein has been driven by the synthesis and characterization of main group metal hydride, alkyl and fluoride complexes with the ultimate aim of developing catalysts for CO2 functionalization. Chapter 1 investigates the synthesis of magnesium, zinc and calcium complexes supported by the tris[(1-isopropylbenzimidazol-2-yl)dimethylsilyl)]methyl ligand, [TismPriBenz]. Most significantly, the magnesium carbatrane compound, [TismPriBenz]MgH, which possesses a terminal hydride ligand, has been synthesized and structurally characterized. The corresponding magnesium methyl derivative, [TismPriBenz]MgMe, was also prepared, and the reactivity of these compounds with respect to both metathesis and insertion is explored in great detail. The synthesis and characterization of the corresponding zinc hydride complex, [κ3 TismPriBenz]ZnH, is also described, as well as the preparation of a rare example of a monomeric calcium benzyl compound, [TismPriBenz]CaCH2Ph. Some reactivity of the zinc and calcium derivatives is also described. In Chapter 2, the aforementioned magnesium and zinc compounds and their reactivity towards CO2 is described in detail. Systems comprised of [TismPriBenz]MH (M = Mg, Zn) and tris(pentafluorophenyl)borane are highly effective for the room temperature reduction of CO2 with R3SiH to afford sequentially the bis(silyl)acetal, H2C(OSiR3)2, and CH4 (R3SiH = PhSiH3, Et3SiH and Ph3SiH). Notably, the selectivity of the catalytic system may be controlled by the nature of the silane. Catalytic intermediates were isolated and structurally characterized, including an interesting magnesium formatoborate complex, which has helped elucidate an understanding of the mechanism of the catalysis. Most significantly, it was found that H2C(OSiPh3)2 can be prepared on a multi-gram scale as a crystalline solid and can be converted directly into formaldehyde (CH2O), which is an important industrial chemical. Thus, H2C(OSiPh3)2 can serve as a formaldehyde surrogate and its ability to provide a means to incorporate CH and CH2 moieties into organic molecules is described. Isotopologues of H2C(OSiPh3)2, namely D2C(OSiPh3)2, H213C(OSiPh3)2, and D213C(OSiPh3)2, may be synthesized from the appropriate combinations of (12C/13C)O2 and Ph3Si(H/D), thereby providing a direct and convenient means to use carbon dioxide as a source of isotopic…

Subjects/Keywords: Chemistry; Carbon dioxide; Metal catalysts

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APA (6^th Edition):

Rauch, M. S. (2019). Main Group Metal Hydride, Alkyl and Fluoride Complexes: Towards CO2 Functionalization with Earth Abundant Metals. (Doctoral Dissertation). Columbia University. Retrieved from https://doi.org/10.7916/d8-t4qw-ak42

Chicago Manual of Style (16^th Edition):

Rauch, Michael S. “Main Group Metal Hydride, Alkyl and Fluoride Complexes: Towards CO2 Functionalization with Earth Abundant Metals.” 2019. Doctoral Dissertation, Columbia University. Accessed January 20, 2021. https://doi.org/10.7916/d8-t4qw-ak42.

MLA Handbook (7^th Edition):

Rauch, Michael S. “Main Group Metal Hydride, Alkyl and Fluoride Complexes: Towards CO2 Functionalization with Earth Abundant Metals.” 2019. Web. 20 Jan 2021.

Vancouver:

Rauch MS. Main Group Metal Hydride, Alkyl and Fluoride Complexes: Towards CO2 Functionalization with Earth Abundant Metals. [Internet] [Doctoral dissertation]. Columbia University; 2019. [cited 2021 Jan 20]. Available from: https://doi.org/10.7916/d8-t4qw-ak42.

Council of Science Editors:

Rauch MS. Main Group Metal Hydride, Alkyl and Fluoride Complexes: Towards CO2 Functionalization with Earth Abundant Metals. [Doctoral Dissertation]. Columbia University; 2019. Available from: https://doi.org/10.7916/d8-t4qw-ak42

University of Aberdeen

6. Leke, Luter. Methanol oxidation over copper and silver monometallic and bimetallic supported catalysts.

Degree: PhD, 2015, University of Aberdeen

URL: https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152487990005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.659064

► The partial oxidation of methanol to formaldehyde with air as oxidant has been studied with supported monometallic and bimetallic catalysts of copper and silver over… (more)

Subjects/Keywords: 540; Methanol – Oxidation; Metal catalysts

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APA (6^th Edition):

Leke, L. (2015). Methanol oxidation over copper and silver monometallic and bimetallic supported catalysts. (Doctoral Dissertation). University of Aberdeen. Retrieved from https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152487990005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.659064

Chicago Manual of Style (16^th Edition):

Leke, Luter. “Methanol oxidation over copper and silver monometallic and bimetallic supported catalysts.” 2015. Doctoral Dissertation, University of Aberdeen. Accessed January 20, 2021. https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152487990005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.659064.

MLA Handbook (7^th Edition):

Leke, Luter. “Methanol oxidation over copper and silver monometallic and bimetallic supported catalysts.” 2015. Web. 20 Jan 2021.

Vancouver:

Leke L. Methanol oxidation over copper and silver monometallic and bimetallic supported catalysts. [Internet] [Doctoral dissertation]. University of Aberdeen; 2015. [cited 2021 Jan 20]. Available from: https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152487990005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.659064.

Council of Science Editors:

Leke L. Methanol oxidation over copper and silver monometallic and bimetallic supported catalysts. [Doctoral Dissertation]. University of Aberdeen; 2015. Available from: https://eu03.alma.exlibrisgroup.com/view/delivery/44ABE_INST/12152487990005941 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.659064

Rutgers University

7. Gardner, Graeme Patrick, 1988-. Structural implications for oxygen electrocatalysis in Earth-abundant transition metal oxides.

Degree: PhD, Chemistry and Chemical Biology, 2016, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/51292/

► Transition metal oxides and related nitrides/nitride-oxides represent a class of materials that have shown great promise as oxygen electrocatalysts to replace the otherwise non-scalable noble… (more)

▼ Transition metal oxides and related nitrides/nitride-oxides represent a class of materials that have shown great promise as oxygen electrocatalysts to replace the otherwise non-scalable noble metal-based catalysts currently implemented in commercial technologies. That is, compounds in this class of materials have shown promise as electrocatalysts for both the oxygen evolution (OER) and oxygen reduction reactions (ORR). The two aforementioned half-reactions are at the cornerstone of most renewable energy transformations, as oxygen is an inherently practical and abundant source and sink for electrons. In water electrolysis to produce hydrogen, oxygen is inevitably formed, and in a fuel cell the driving force for extracting electrochemical energy from hydrogen is pairing it with the reduction of oxygen to water. If this can be accomplished reversibly, the problem of "transient" renewable energy and its storage can be mitigated. We have examined many metal oxides and related compounds based upon Earth- abundant transition metals (primarily first row) that are crystalline, yet high surface area, for these important electrocatalytic reactions, and found that crystal structure plays a crucial role in determining activity. In fact, while most studies on heterogeneous catalysis focus on the synthesis of defect-rich, high surface area, practically amorphous materials to elicit high activity, we have found that particular crystalline phases possess not only the appropriate activity, but to some degree more importantly, the stability to be named good catalysts. In Chapter 2, we demonstrate that of the two structural types of lithium cobalt oxide (LiCoO2) - layered (R-3m) and cubic (Fd-3m) - only the cubic phase is revealed to be an efficient and stable catalyst for OER. Whether water oxidation is driven photochemically, or electrochemically, the cubic phase LiCoO2 possessing a spinel-like structure (AB2O4) with [Co4O4] subunits within the crystal is more active. It is seen that electrochemically, both the cubic and layered phases transform to the spinel LiCo2O4 at surface and subsurface levels. This coincides with partial delithiation that is more extensive in layered LiCoO2. It is revealed that the oxidation of Co3+ to Co4+ is accompanied by delithiation in aqueous electrolyte to form the active state of the LiCoO2 catalyst. The electronic properties of the cubic spinel allow for localization of electron holes at cubic core active sites to effect water oxidation, whereas holes are more extensively delocalized in layered LiCoO2 in concert with the Li+ deintercalation reaction. In Chapter 3, we investigate the influence of chemical composition on the catalytic water oxidation activity of Co-substituted spinel LiMn2O4 and Mn-substituted cubic LiCoO2. We find that in the spinel LiMn2O4, Co3+ substitution occurs at the B-site for Mn3+, and the solid solution limit for starts at 1:1 Co:Mn ratio, where Co begins to go into the A-site. The activity for OER increases with increasing Co, owing to the symmetrization of the M4O4 core… Advisors/Committee Members: Dismukes, Gerard Charles (chair), Castner, Edward W. (internal member), Greenblatt, Martha (internal member), Amatucci, Glenn G (outside member).

Subjects/Keywords: Transition metal oxides; Catalysts

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APA (6^th Edition):

Gardner, Graeme Patrick, 1. (2016). Structural implications for oxygen electrocatalysis in Earth-abundant transition metal oxides. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/51292/

Chicago Manual of Style (16^th Edition):

Gardner, Graeme Patrick, 1988-. “Structural implications for oxygen electrocatalysis in Earth-abundant transition metal oxides.” 2016. Doctoral Dissertation, Rutgers University. Accessed January 20, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/51292/.

MLA Handbook (7^th Edition):

Gardner, Graeme Patrick, 1988-. “Structural implications for oxygen electrocatalysis in Earth-abundant transition metal oxides.” 2016. Web. 20 Jan 2021.

Vancouver:

Gardner, Graeme Patrick 1. Structural implications for oxygen electrocatalysis in Earth-abundant transition metal oxides. [Internet] [Doctoral dissertation]. Rutgers University; 2016. [cited 2021 Jan 20]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/51292/.

Council of Science Editors:

Gardner, Graeme Patrick 1. Structural implications for oxygen electrocatalysis in Earth-abundant transition metal oxides. [Doctoral Dissertation]. Rutgers University; 2016. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/51292/

Purdue University

8. Gao, Danni. Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts.

Degree: PhD, Chemical Engineering, 2014, Purdue University

URL: https://docs.lib.purdue.edu/open_access_dissertations/1498

► Pyrolysis of biomass is a promising technology to convert solid biomass into liquid bio-oils. However, bio-oils have high water and oxygen content which subsequently lowers… (more)

Subjects/Keywords: Guaiacol; Hydrodeoxygenation; Noble Metal Catalysts

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APA (6^th Edition):

Gao, D. (2014). Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts. (Doctoral Dissertation). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_dissertations/1498

Chicago Manual of Style (16^th Edition):

Gao, Danni. “Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts.” 2014. Doctoral Dissertation, Purdue University. Accessed January 20, 2021. https://docs.lib.purdue.edu/open_access_dissertations/1498.

MLA Handbook (7^th Edition):

Gao, Danni. “Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts.” 2014. Web. 20 Jan 2021.

Vancouver:

Gao D. Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts. [Internet] [Doctoral dissertation]. Purdue University; 2014. [cited 2021 Jan 20]. Available from: https://docs.lib.purdue.edu/open_access_dissertations/1498.

Council of Science Editors:

Gao D. Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts. [Doctoral Dissertation]. Purdue University; 2014. Available from: https://docs.lib.purdue.edu/open_access_dissertations/1498

University of Alberta

9. Chahar, Bharat S. Sintering of supported metal catalysts: comparison of supported metals and supports.

Degree: MSin Chemical Engineering, Department of Chemical Engineering, 1977, University of Alberta

URL: https://era.library.ualberta.ca/files/5138jg79g

Subjects/Keywords: Sintering.; Metal catalysts.

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APA (6^th Edition):

Chahar, B. S. (1977). Sintering of supported metal catalysts: comparison of supported metals and supports. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/5138jg79g

Chicago Manual of Style (16^th Edition):

Chahar, Bharat S. “Sintering of supported metal catalysts: comparison of supported metals and supports.” 1977. Masters Thesis, University of Alberta. Accessed January 20, 2021. https://era.library.ualberta.ca/files/5138jg79g.

MLA Handbook (7^th Edition):

Chahar, Bharat S. “Sintering of supported metal catalysts: comparison of supported metals and supports.” 1977. Web. 20 Jan 2021.

Vancouver:

Chahar BS. Sintering of supported metal catalysts: comparison of supported metals and supports. [Internet] [Masters thesis]. University of Alberta; 1977. [cited 2021 Jan 20]. Available from: https://era.library.ualberta.ca/files/5138jg79g.

Council of Science Editors:

Chahar BS. Sintering of supported metal catalysts: comparison of supported metals and supports. [Masters Thesis]. University of Alberta; 1977. Available from: https://era.library.ualberta.ca/files/5138jg79g

Texas A&M University

10. Ayyildiz, Burak Celal. Fuel Cell Development with Non-Precious Metal Catalysts.

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

URL: http://hdl.handle.net/1969.1/174252

► Proton exchange membrane (PEM) fuel cells are clean energy sources which are offering solutions to some problems that are caused by climate change and global… (more)

Subjects/Keywords: fuel cell; non-precious metal catalysts

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APA (6^th Edition):

Ayyildiz, B. C. (2016). Fuel Cell Development with Non-Precious Metal Catalysts. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/174252

Chicago Manual of Style (16^th Edition):

Ayyildiz, Burak Celal. “Fuel Cell Development with Non-Precious Metal Catalysts.” 2016. Masters Thesis, Texas A&M University. Accessed January 20, 2021. http://hdl.handle.net/1969.1/174252.

MLA Handbook (7^th Edition):

Ayyildiz, Burak Celal. “Fuel Cell Development with Non-Precious Metal Catalysts.” 2016. Web. 20 Jan 2021.

Vancouver:

Ayyildiz BC. Fuel Cell Development with Non-Precious Metal Catalysts. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1969.1/174252.

Council of Science Editors:

Ayyildiz BC. Fuel Cell Development with Non-Precious Metal Catalysts. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/174252

University of Newcastle

11. Almukhlifi, Hanadi. The effects of gold nanoparticles on isobutane oxidation by phosphopolyoxomolybdates and metal oxides.

Degree: MPhil, 2012, University of Newcastle

URL: http://hdl.handle.net/1959.13/933148

►

Masters Research - Master of Philopophy (MPhil)

This thesis describes a new approach for the preparation of oxidation catalysts that contain pure gold nanoparticles on… (more)

Subjects/Keywords: oxidation; catalysts; gold; nanoparticles; phosphopolyoxomolybdate; metal oxides

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APA (6^th Edition):

Almukhlifi, H. (2012). The effects of gold nanoparticles on isobutane oxidation by phosphopolyoxomolybdates and metal oxides. (Masters Thesis). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/933148

Chicago Manual of Style (16^th Edition):

Almukhlifi, Hanadi. “The effects of gold nanoparticles on isobutane oxidation by phosphopolyoxomolybdates and metal oxides.” 2012. Masters Thesis, University of Newcastle. Accessed January 20, 2021. http://hdl.handle.net/1959.13/933148.

MLA Handbook (7^th Edition):

Almukhlifi, Hanadi. “The effects of gold nanoparticles on isobutane oxidation by phosphopolyoxomolybdates and metal oxides.” 2012. Web. 20 Jan 2021.

Vancouver:

Almukhlifi H. The effects of gold nanoparticles on isobutane oxidation by phosphopolyoxomolybdates and metal oxides. [Internet] [Masters thesis]. University of Newcastle; 2012. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1959.13/933148.

Council of Science Editors:

Almukhlifi H. The effects of gold nanoparticles on isobutane oxidation by phosphopolyoxomolybdates and metal oxides. [Masters Thesis]. University of Newcastle; 2012. Available from: http://hdl.handle.net/1959.13/933148

University of Johannesburg

12. Hughes, Tanya. DoM chemistry in the preparation of phosphine ligands for Pd-catalysed reactions.

Degree: 2010, University of Johannesburg

URL: http://hdl.handle.net/10210/3149

►

M.Sc.

The objective of the project described in this dissertation was the preparation of a range of bulky electron-rich phosphine ligands making use of the… (more)

Subjects/Keywords: Phosphine; Ligands; Phosphorus compounds synthesis; Metal catalysts

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APA (6^th Edition):

Hughes, T. (2010). DoM chemistry in the preparation of phosphine ligands for Pd-catalysed reactions. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/3149

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):

Hughes, Tanya. “DoM chemistry in the preparation of phosphine ligands for Pd-catalysed reactions.” 2010. Thesis, University of Johannesburg. Accessed January 20, 2021. http://hdl.handle.net/10210/3149.

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

MLA Handbook (7^th Edition):

Hughes, Tanya. “DoM chemistry in the preparation of phosphine ligands for Pd-catalysed reactions.” 2010. Web. 20 Jan 2021.

Vancouver:

Hughes T. DoM chemistry in the preparation of phosphine ligands for Pd-catalysed reactions. [Internet] [Thesis]. University of Johannesburg; 2010. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10210/3149.

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

Council of Science Editors:

Hughes T. DoM chemistry in the preparation of phosphine ligands for Pd-catalysed reactions. [Thesis]. University of Johannesburg; 2010. Available from: http://hdl.handle.net/10210/3149

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

University of Johannesburg

13. Henning, Hendrik. Ethers and acetals in aluminium triflatepromoted reactions.

Degree: 2013, University of Johannesburg

URL: http://hdl.handle.net/10210/8561

►

M.Sc. (Chemistry)

The work in this thesis describes some catalytic reactions of aluminium triflate. This Lewis acid has been shown to be of great value… (more)

Subjects/Keywords: Aluminum; Ethers; Lewis acids; Metal catalysts

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APA (6^th Edition):

Henning, H. (2013). Ethers and acetals in aluminium triflatepromoted reactions. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/8561

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):

Henning, Hendrik. “Ethers and acetals in aluminium triflatepromoted reactions.” 2013. Thesis, University of Johannesburg. Accessed January 20, 2021. http://hdl.handle.net/10210/8561.

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

MLA Handbook (7^th Edition):

Henning, Hendrik. “Ethers and acetals in aluminium triflatepromoted reactions.” 2013. Web. 20 Jan 2021.

Vancouver:

Henning H. Ethers and acetals in aluminium triflatepromoted reactions. [Internet] [Thesis]. University of Johannesburg; 2013. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10210/8561.

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

Council of Science Editors:

Henning H. Ethers and acetals in aluminium triflatepromoted reactions. [Thesis]. University of Johannesburg; 2013. Available from: http://hdl.handle.net/10210/8561

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

Columbia University

14. Hu, Yue. Catalyst Design for the Ionic Hydrogenation of C=N Bonds.

Degree: 2015, Columbia University

URL: https://doi.org/10.7916/D8JQ103Z

► New chiral half-sandwich Ru hydride enantiomers with asymmetric disubstitution on the Cp ligand have been successfully synthesized and resolved. An enantiopure thiolate ligand was installed… (more)

Subjects/Keywords: Transition metal hydrides; Catalysts; Hydrogenation; Chemistry

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APA (6^th Edition):

Hu, Y. (2015). Catalyst Design for the Ionic Hydrogenation of C=N Bonds. (Doctoral Dissertation). Columbia University. Retrieved from https://doi.org/10.7916/D8JQ103Z

Chicago Manual of Style (16^th Edition):

Hu, Yue. “Catalyst Design for the Ionic Hydrogenation of C=N Bonds.” 2015. Doctoral Dissertation, Columbia University. Accessed January 20, 2021. https://doi.org/10.7916/D8JQ103Z.

MLA Handbook (7^th Edition):

Hu, Yue. “Catalyst Design for the Ionic Hydrogenation of C=N Bonds.” 2015. Web. 20 Jan 2021.

Vancouver:

Hu Y. Catalyst Design for the Ionic Hydrogenation of C=N Bonds. [Internet] [Doctoral dissertation]. Columbia University; 2015. [cited 2021 Jan 20]. Available from: https://doi.org/10.7916/D8JQ103Z.

Council of Science Editors:

Hu Y. Catalyst Design for the Ionic Hydrogenation of C=N Bonds. [Doctoral Dissertation]. Columbia University; 2015. Available from: https://doi.org/10.7916/D8JQ103Z

Columbia University

15. Zhang, Qian. Metal-modified Transition Metal Carbides for Electrochemical Applications.

Degree: 2018, Columbia University

URL: https://doi.org/10.7916/D8DJ6ZGD

► Proton exchange membrane or anion exchange membrane water electrolyzers and fuel cells are still expensive for large-scale commercialization. It requires more investigation and research on… (more)

▼ Proton exchange membrane or anion exchange membrane water electrolyzers and fuel cells are still expensive for large-scale commercialization. It requires more investigation and research on finding more economical and efficient electrocatalysts for reactions in these devices. This thesis investigates the performance of metal-modified transition metal carbides on hydrogen evolution reaction (HER) and ethanol oxidation reaction (EOR). The catalysts screening principles for HER and EOR in acid and alkaline are examined and developed by correlating density functional theory (DFT) calculations with experimental results. Metal-modified transition metal carbides can reduce the amount of platinum group metals required for HER, but it is unclear what descriptors are relevant for these materials for the HER under alkaline conditions. Several transition metal carbides (Mo2C, NbC, TaC, WC, VC) thin films were synthesized and modified with monolayers of platinum or gold. The experimentally measured HER exchange current densities were compared with DFT calculations of adsorbed hydrogen and hydroxyl binding energies. The plot of HER activity versus hydrogen binding energy showed a volcano shape for catalysts in both acid and alkaline electrolytes, but the hydroxyl binding energy did not form a strong correlation with alkaline HER activity. Relatively high surface area molybdenum carbide (Mo2C) particles was modified with 5 wt % silver, copper, nickel, platinum, and palladium and subsequently assessed for their HER activity in alkaline and acid electrolytes. DFT‐calculated hydrogen binding energies predicted that Pt–Mo2C and Pd–Mo2C should be most active, which was confirmed with experimental results. Similar activity trends were observed at both high and low pH values, with Cu/Mo2C being the least active. X‐ray photoelectron spectroscopy (XPS) confirmed that metal particles remained on the sample before and after HER testing. Pt‐modified nanocrystalline Mo2C showed superior HER activity compared with Pt‐modified commercial Mo2C, making it a potential replacement for bulk Pt in alkaline membrane electrolyzers. The positive effect on the HER activity of the metal contact with non‐passivated Mo2C surfaces was also demonstrated. Ethanol is an ideal fuel in low-temperature fuel cells. The EOR on platinum-modified tantalum carbide (TaC) was investigated using both model thin films and powder catalysts. The results demonstrated that the 1.5 wt% Pt-modified TaC catalyst obtained enhanced EOR activity compared to Pt. In-situ infrared reflection absorption spectroscopy (IRRAS) study revealed that the Pt surface was less poisoned by EOR intermediates and a higher CO2 selectivity (7~9%) was achieved on the 1.5 wt% Pt/TaC catalyst, compared to the 40 wt% Pt/C. DFT calculations revealed that the binding energies of EOR intermediates on the Pt/TaC(111) surface a weaker than on Pt(111), suggesting an enhanced poison-tolerance from the adsorption of these intermediates. The combined experimental and theoretical investigations…

Subjects/Keywords: Chemistry; Electrochemistry; Transition metal carbides; Catalysts

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APA (6^th Edition):

Zhang, Q. (2018). Metal-modified Transition Metal Carbides for Electrochemical Applications. (Doctoral Dissertation). Columbia University. Retrieved from https://doi.org/10.7916/D8DJ6ZGD

Chicago Manual of Style (16^th Edition):

Zhang, Qian. “Metal-modified Transition Metal Carbides for Electrochemical Applications.” 2018. Doctoral Dissertation, Columbia University. Accessed January 20, 2021. https://doi.org/10.7916/D8DJ6ZGD.

MLA Handbook (7^th Edition):

Zhang, Qian. “Metal-modified Transition Metal Carbides for Electrochemical Applications.” 2018. Web. 20 Jan 2021.

Vancouver:

Zhang Q. Metal-modified Transition Metal Carbides for Electrochemical Applications. [Internet] [Doctoral dissertation]. Columbia University; 2018. [cited 2021 Jan 20]. Available from: https://doi.org/10.7916/D8DJ6ZGD.

Council of Science Editors:

Zhang Q. Metal-modified Transition Metal Carbides for Electrochemical Applications. [Doctoral Dissertation]. Columbia University; 2018. Available from: https://doi.org/10.7916/D8DJ6ZGD

Hong Kong University of Science and Technology

16. Lam, King Chung. Theoretical studies on structural and mechanistic aspects of transition-metal catalyzed reactions.

Degree: 2006, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-2765 ; https://doi.org/10.14711/thesis-b930737 ; http://repository.ust.hk/ir/bitstream/1783.1-2765/1/th_redirect.html

► Theoretical studies on structural and bonding features of transition-metal complexes and reaction mechanisms of transition-metal-catalyzed reactions are reported in this thesis. 1-Zirconacyclopen-3-yne (1) was reported… (more)

▼ Theoretical studies on structural and bonding features of transition-metal complexes and reaction mechanisms of transition-metal-catalyzed reactions are reported in this thesis. 1-Zirconacyclopen-3-yne (1) was reported as a small and stable five-membered cyclic alkyne. We investigated the structural stability of 1 with the aid of DFT calculations. The calculations results suggest that the resonance hybrid between a cumulene complex form and a metallacyclopentyne Lewis structure is required to account for the structure and stability of 1. The site preference of boryl ligands in five-coordinate transition metal boryl complexes has been investigated by DFT calculations. The preferred site for a boryl ligand depends on the electron count of the complex under consideration. Our studies show that the very strong σ-donating boryl ligands choose to occupy coordination sites such that those orbitals accommodating metal d electrons have minimal metal-boryl σ*-antibonding character. The heterobimetallic complex (η5-C5H5)Ru(CO)(μ-dppm)Mn(CO)4 was found as the active catalyst for the coupling reactions of epoxides with carbon dioxide to yield cyclic carbonates. DFT calculations were carried out to understand the reaction mechanisms. We have shown how the two metal centers cooperate with each other to promote the catalytic reactions. In 1997, Masuda et al. reported a palladium-catalyzed cross-coupling reaction of pinacolborane with aryl halides. DFT calculations have been preformed to study the reaction mechanism. Our calculations show that the metathesis process of [LnPd-Ar(η2-H-B(OR)2)]+ → [LnPd-H(η2-Ar-B(OR)2)]+ via a four-center transition state is a feasible way to transfer the boryl group from pinacolborane to the aryl group. Applying the newly proposed mechanism, we have also investigated the palladium-catalyzed coupling reactions of (dialkylamino)boranes with aryl halides to yield monomeric aryl(dialkylamino)boranes. DFT calculations on the model systern [(PH3)(CO)(C1)Ru-CH2CH2B(OCH2CH2O)] provide insight into the process by which a boryl group, at the β-position of a metal bound alkyl moiety, can be transferred to the metal center. Implications of this pathway with regard to catalytic processes such as hydroboration, dehydrogenative borylation, diboration and addition of other B-X bonds to alkenes are noted.

Subjects/Keywords: Transition metal catalysts

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APA (6^th Edition):

Lam, K. C. (2006). Theoretical studies on structural and mechanistic aspects of transition-metal catalyzed reactions. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-2765 ; https://doi.org/10.14711/thesis-b930737 ; http://repository.ust.hk/ir/bitstream/1783.1-2765/1/th_redirect.html

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):

Lam, King Chung. “Theoretical studies on structural and mechanistic aspects of transition-metal catalyzed reactions.” 2006. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-2765 ; https://doi.org/10.14711/thesis-b930737 ; http://repository.ust.hk/ir/bitstream/1783.1-2765/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Lam, King Chung. “Theoretical studies on structural and mechanistic aspects of transition-metal catalyzed reactions.” 2006. Web. 20 Jan 2021.

Vancouver:

Lam KC. Theoretical studies on structural and mechanistic aspects of transition-metal catalyzed reactions. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2006. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-2765 ; https://doi.org/10.14711/thesis-b930737 ; http://repository.ust.hk/ir/bitstream/1783.1-2765/1/th_redirect.html.

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

Council of Science Editors:

Lam KC. Theoretical studies on structural and mechanistic aspects of transition-metal catalyzed reactions. [Thesis]. Hong Kong University of Science and Technology; 2006. Available from: http://repository.ust.hk/ir/Record/1783.1-2765 ; https://doi.org/10.14711/thesis-b930737 ; http://repository.ust.hk/ir/bitstream/1783.1-2765/1/th_redirect.html

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

Rice University

17. Hackenberg, Ken P. Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures.

Degree: PhD, Engineering, 2016, Rice University

URL: http://hdl.handle.net/1911/96602

► 2D van der Waals solids (vdW) have received attention for decades, due to their unique anisotropic mechanical character, making them useful in applications such as… (more)

Subjects/Keywords: Transition metal dichalcogenides; hydrogen evolution reaction catalysts

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APA (6^th Edition):

Hackenberg, K. P. (2016). Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/96602

Chicago Manual of Style (16^th Edition):

Hackenberg, Ken P. “Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures.” 2016. Doctoral Dissertation, Rice University. Accessed January 20, 2021. http://hdl.handle.net/1911/96602.

MLA Handbook (7^th Edition):

Hackenberg, Ken P. “Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures.” 2016. Web. 20 Jan 2021.

Vancouver:

Hackenberg KP. Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures. [Internet] [Doctoral dissertation]. Rice University; 2016. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1911/96602.

Council of Science Editors:

Hackenberg KP. Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures. [Doctoral Dissertation]. Rice University; 2016. Available from: http://hdl.handle.net/1911/96602

Rice University

18. Hackenberg, Ken P. Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures.

Degree: PhD, Materials Science & NanoEng, 2016, Rice University

URL: http://hdl.handle.net/1911/96603

► 2D van der Waals solids (vdW) have received attention for decades, due to their unique anisotropic mechanical character, making them useful in applications such as… (more)

Subjects/Keywords: Transition metal dichalcogenides; hydrogen evolution reaction catalysts

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APA (6^th Edition):

Hackenberg, K. P. (2016). Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/96603

Chicago Manual of Style (16^th Edition):

Hackenberg, Ken P. “Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures.” 2016. Doctoral Dissertation, Rice University. Accessed January 20, 2021. http://hdl.handle.net/1911/96603.

MLA Handbook (7^th Edition):

Hackenberg, Ken P. “Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures.” 2016. Web. 20 Jan 2021.

Vancouver:

Hackenberg KP. Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures. [Internet] [Doctoral dissertation]. Rice University; 2016. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1911/96603.

Council of Science Editors:

Hackenberg KP. Synthesis, Electrocatalytic Properties, and Physical Phenomena of Group V Transition Metal Dichalcogenide Nanostructures. [Doctoral Dissertation]. Rice University; 2016. Available from: http://hdl.handle.net/1911/96603

Michigan State University

19. Raythatha, Rasik Haridas. Intercalation of rhodium complex catalyst in layered silicates : effect on product distribution in the hydrogenation of 2,3-dimethyl-1,3-butadiene and other olefins.

Degree: MS, Department of Chemistry, 1978, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:41041

Subjects/Keywords: Metal catalysts; Alkenes

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APA (6^th Edition):

Raythatha, R. H. (1978). Intercalation of rhodium complex catalyst in layered silicates : effect on product distribution in the hydrogenation of 2,3-dimethyl-1,3-butadiene and other olefins. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:41041

Chicago Manual of Style (16^th Edition):

Raythatha, Rasik Haridas. “Intercalation of rhodium complex catalyst in layered silicates : effect on product distribution in the hydrogenation of 2,3-dimethyl-1,3-butadiene and other olefins.” 1978. Masters Thesis, Michigan State University. Accessed January 20, 2021. http://etd.lib.msu.edu/islandora/object/etd:41041.

MLA Handbook (7^th Edition):

Raythatha, Rasik Haridas. “Intercalation of rhodium complex catalyst in layered silicates : effect on product distribution in the hydrogenation of 2,3-dimethyl-1,3-butadiene and other olefins.” 1978. Web. 20 Jan 2021.

Vancouver:

Raythatha RH. Intercalation of rhodium complex catalyst in layered silicates : effect on product distribution in the hydrogenation of 2,3-dimethyl-1,3-butadiene and other olefins. [Internet] [Masters thesis]. Michigan State University; 1978. [cited 2021 Jan 20]. Available from: http://etd.lib.msu.edu/islandora/object/etd:41041.

Council of Science Editors:

Raythatha RH. Intercalation of rhodium complex catalyst in layered silicates : effect on product distribution in the hydrogenation of 2,3-dimethyl-1,3-butadiene and other olefins. [Masters Thesis]. Michigan State University; 1978. Available from: http://etd.lib.msu.edu/islandora/object/etd:41041

University of New Mexico

20. Fitch, JIm. Aerosol synthesis and Rietveld refinement of Pd2Zn.

Degree: Nanoscience and Microsystems, 2013, University of New Mexico

URL: http://hdl.handle.net/1928/21997

► PdZn catalysts have been proven to be a viable option to replace current Cu catalysts for methanol steam reforming. The change in selectivity to CO2… (more)

Subjects/Keywords: Metal catalysts – Analysis.; Rietveld method.; Catalytic reforming.

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APA (6^th Edition):

Fitch, J. (2013). Aerosol synthesis and Rietveld refinement of Pd2Zn. (Masters Thesis). University of New Mexico. Retrieved from http://hdl.handle.net/1928/21997

Chicago Manual of Style (16^th Edition):

Fitch, JIm. “Aerosol synthesis and Rietveld refinement of Pd2Zn.” 2013. Masters Thesis, University of New Mexico. Accessed January 20, 2021. http://hdl.handle.net/1928/21997.

MLA Handbook (7^th Edition):

Fitch, JIm. “Aerosol synthesis and Rietveld refinement of Pd2Zn.” 2013. Web. 20 Jan 2021.

Vancouver:

Fitch J. Aerosol synthesis and Rietveld refinement of Pd2Zn. [Internet] [Masters thesis]. University of New Mexico; 2013. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1928/21997.

Council of Science Editors:

Fitch J. Aerosol synthesis and Rietveld refinement of Pd2Zn. [Masters Thesis]. University of New Mexico; 2013. Available from: http://hdl.handle.net/1928/21997

Kansas State University

21. Devgon, Vinay Kumar. The sintering and redispersion of supported metal catalysts.

Degree: 1976, Kansas State University

URL: http://hdl.handle.net/2097/8909

Subjects/Keywords: Metal catalysts; Sintering

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APA (6^th Edition):

Devgon, V. K. (1976). The sintering and redispersion of supported metal catalysts. (Thesis). Kansas State University. Retrieved from http://hdl.handle.net/2097/8909

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):

Devgon, Vinay Kumar. “The sintering and redispersion of supported metal catalysts.” 1976. Thesis, Kansas State University. Accessed January 20, 2021. http://hdl.handle.net/2097/8909.

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

MLA Handbook (7^th Edition):

Devgon, Vinay Kumar. “The sintering and redispersion of supported metal catalysts.” 1976. Web. 20 Jan 2021.

Vancouver:

Devgon VK. The sintering and redispersion of supported metal catalysts. [Internet] [Thesis]. Kansas State University; 1976. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/2097/8909.

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

Council of Science Editors:

Devgon VK. The sintering and redispersion of supported metal catalysts. [Thesis]. Kansas State University; 1976. Available from: http://hdl.handle.net/2097/8909

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

Virginia Tech

22. Zhang, Xiwen. Structure Sensitivity of Alkane Hydrogenolysis on Ir/MgAl2O4 Catalysts.

Degree: M. S., Chemical Engineering, 2018, Virginia Tech

URL: http://hdl.handle.net/10919/96605

► In many catalytic systems, the catalytic performance of a metal supported catalyst would be affected by the size and shape of the metals, and this… (more)

▼ In many catalytic systems, the catalytic performance of a metal supported catalyst would be affected by the size and shape of the metals, and this phenomena is called structure sensitivity. Generally, the structure sensitivity effect is considered being led by a combination of geometric property change and electronic property change of the surface metals. The particle size variation is an effective way to change the surface structure of the supported metal catalyst, leading to different fractions of the active sites exposing on the support that would take effect on catalyzing the reaction. In this project, a series of Ir/MgAl2O4 catalysts with different particle sizes that less than 2nm were utilized for ethane and n-butane hydrogenolysis reactions to study the structure sensitivity effect as well as the potential reaction mechanism. The results show that the activity on the catalysts with nanoparticles and mostly single atoms is evidently higher than that with the subnanometer clusters in both reactions, but the selectivity to the target product of ethane is not quite dependent on the particle size in the n-butane hydrogenolysis. After the fundamental analysis, it is proposed that the reaction mechanism of alkanes hydrogenolysis on the single atom catalysts including single active sites is probably distinctive from that generally accepted on the large particles containing multiple active sites from literature. For n-butane hydrogenolysis, the parallel reaction pathway of central C-C bond cleavage is dominant at low temperature or in the low conversion range. As the temperature going up or the conversion increasing at a certain temperature, the parallel reaction pathway of terminal C-C bond cleavage becomes more and more competitive. The series reaction pathway of hydrogenolysis on propane intermediate would always take place, but the level would be drastically enhanced when the conversion keeps increasing in the very high range. The C-C bond cleavage on the ethane product would not easily happen unless the conversion is close to 100%. Advisors/Committee Members: Karim, Ayman M. (committeechair), Cox, David F. (committee member), Xin, Hongliang (committee member).

Subjects/Keywords: Supported metal catalysts; structure sensitivity; alkanes hydrogenolysis

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APA (6^th Edition):

Zhang, X. (2018). Structure Sensitivity of Alkane Hydrogenolysis on Ir/MgAl2O4 Catalysts. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/96605

Chicago Manual of Style (16^th Edition):

Zhang, Xiwen. “Structure Sensitivity of Alkane Hydrogenolysis on Ir/MgAl2O4 Catalysts.” 2018. Masters Thesis, Virginia Tech. Accessed January 20, 2021. http://hdl.handle.net/10919/96605.

MLA Handbook (7^th Edition):

Zhang, Xiwen. “Structure Sensitivity of Alkane Hydrogenolysis on Ir/MgAl2O4 Catalysts.” 2018. Web. 20 Jan 2021.

Vancouver:

Zhang X. Structure Sensitivity of Alkane Hydrogenolysis on Ir/MgAl2O4 Catalysts. [Internet] [Masters thesis]. Virginia Tech; 2018. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10919/96605.

Council of Science Editors:

Zhang X. Structure Sensitivity of Alkane Hydrogenolysis on Ir/MgAl2O4 Catalysts. [Masters Thesis]. Virginia Tech; 2018. Available from: http://hdl.handle.net/10919/96605

Hong Kong University of Science and Technology

23. Xue, Liqin. Theoretical studies on palladium mediated or catalyzed C-C coupling reactions.

Degree: 2011, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-7311 ; https://doi.org/10.14711/thesis-b1155620 ; http://repository.ust.hk/ir/bitstream/1783.1-7311/1/th_redirect.html

► Theoretical studies on the chemical bonding in palladium complexes and mechanistic aspect on palladium mediated or catalyzed reactions are reported in this thesis. Part I:… (more)

▼ Theoretical studies on the chemical bonding in palladium complexes and mechanistic aspect on palladium mediated or catalyzed reactions are reported in this thesis. Part I: The insertion reactions of allenes with the palladium aryl complex [PdI(Ph)(PPh3)]2 have been systematically investigated with the aid of DFT calculations. The calculated results show that formation of allyl complex PdI(η3-MeCHC(Ph)CHSO2H)(PH3) from PdI(Ph)MeCH=C=CHSO2H)(PH3) is both thermodynamically and kinetically favored among the possible pathways, which is consistent with the experimental results. The regioselectivity observed experimentally has also been explained. Part II: The relative stability of the trans and cis isomers in the square planar palladium(II) complexes Pd(I)(PPh3)(η3-XCHC(Ph)CHR) (X = H, Me, CMe3, CO2Me, P(O)(OMe)2 and SO2H; R = H, Me) was investigated with the aid of DFT calculations at the B3LYP level. How the substituents X, with different electronic properties, of the η3-allyl ligands affect the relative stability of the trans and cis isomers has been examined. Through the investigation, the trans/cis relative stability derived from the experimentally measured trans/cis isomer ratios in the palladium(II) complexes has been explained. Part III: The multiple insertion of a silyl vinyl ether into the Pd-C bond in (α-diimine)PdMe+ has been thoroughly studied with the aid of DFT calculations. Through the study, it was found that the 1,2-insertion is preferred over 2,1-insertion for the chain growth. For the β-OSiH3 elimination, the overall barrier is comparable to the VE insertion barriers in the chain growth. The DFT calculations provide deep insights into these processes of the chain growth, the β-OSiH3 elimination and the chain walking in the polymerization reactions. Part IV: Decarboxylation processes in a series of PdL2X(OOCArR) complexes BOSR (L = DMSO; X = OOCCF3; R = H, OMe, NO2, Me and CN) with the substituent R in an ortho, meta or para position were investigated with the aid of DFT calculations. Through our study, it was found that the OOCCF3- ligand is not just a spectator ligand but assists the decarboxylation process. The results indicated that electron-donating substituents have greater promotion effect than electron-withdrawing substituents on the decarboxylation process. An ortho substituent in the substrate ligands OOCArR- is normally necessary for a successful decarboxylation. The reason behind this has been explained. Part V: Palladium-catalyzed processes for the formation of carbon-carbon bonds, i.e., coupling reactions of organic halides (R1X) and main-group organometallic compounds (R2M) are most frequently applied in synthesizing biologically and pharmaceutically important organic molecules. In chapter 6, we provide comments and discussion on current understanding of the palladium-catalyzed carbon-carbon cross-coupling reactions, and give an up-to-date summary of the current understanding of the cross-coupling reactions from a theoretical point of view. The successfully application by using modern…

Subjects/Keywords: Metal catalysts ; Palladium catalysts ; Organopalladium compounds – Synthesis ; Chemical bonds

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APA (6^th Edition):

Xue, L. (2011). Theoretical studies on palladium mediated or catalyzed C-C coupling reactions. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-7311 ; https://doi.org/10.14711/thesis-b1155620 ; http://repository.ust.hk/ir/bitstream/1783.1-7311/1/th_redirect.html

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):

Xue, Liqin. “Theoretical studies on palladium mediated or catalyzed C-C coupling reactions.” 2011. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-7311 ; https://doi.org/10.14711/thesis-b1155620 ; http://repository.ust.hk/ir/bitstream/1783.1-7311/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Xue, Liqin. “Theoretical studies on palladium mediated or catalyzed C-C coupling reactions.” 2011. Web. 20 Jan 2021.

Vancouver:

Xue L. Theoretical studies on palladium mediated or catalyzed C-C coupling reactions. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2011. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-7311 ; https://doi.org/10.14711/thesis-b1155620 ; http://repository.ust.hk/ir/bitstream/1783.1-7311/1/th_redirect.html.

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

Council of Science Editors:

Xue L. Theoretical studies on palladium mediated or catalyzed C-C coupling reactions. [Thesis]. Hong Kong University of Science and Technology; 2011. Available from: http://repository.ust.hk/ir/Record/1783.1-7311 ; https://doi.org/10.14711/thesis-b1155620 ; http://repository.ust.hk/ir/bitstream/1783.1-7311/1/th_redirect.html

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

Michigan State University

24. Su, Shiu-Chin H. Preparation and characterization of hybrid phase catalysts.

Degree: PhD, 1978, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:35962

Subjects/Keywords: Metal catalysts; Catalysts; Chemistry, Organic

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APA (6^th Edition):

Su, S. H. (1978). Preparation and characterization of hybrid phase catalysts. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:35962

Chicago Manual of Style (16^th Edition):

Su, Shiu-Chin H. “Preparation and characterization of hybrid phase catalysts.” 1978. Doctoral Dissertation, Michigan State University. Accessed January 20, 2021. http://etd.lib.msu.edu/islandora/object/etd:35962.

MLA Handbook (7^th Edition):

Su, Shiu-Chin H. “Preparation and characterization of hybrid phase catalysts.” 1978. Web. 20 Jan 2021.

Vancouver:

Su SH. Preparation and characterization of hybrid phase catalysts. [Internet] [Doctoral dissertation]. Michigan State University; 1978. [cited 2021 Jan 20]. Available from: http://etd.lib.msu.edu/islandora/object/etd:35962.

Council of Science Editors:

Su SH. Preparation and characterization of hybrid phase catalysts. [Doctoral Dissertation]. Michigan State University; 1978. Available from: http://etd.lib.msu.edu/islandora/object/etd:35962

Hong Kong University of Science and Technology

25. Zhao, Hui CHEM. Copper- and gold-catalyzed reactions of functionalized internal alkynes and synthesis of the C19-C30 fragment of iriomoteolide-13a.

Degree: 2017, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-105584 ; https://doi.org/10.14711/thesis-991012564669003412 ; http://repository.ust.hk/ir/bitstream/1783.1-105584/1/th_redirect.html

► Alkyne functionalization is a hot topic in organic synthesis since the products could be utilized in diverse transformations. The main themes of this thesis work… (more)

▼ Alkyne functionalization is a hot topic in organic synthesis since the products could be utilized in diverse transformations. The main themes of this thesis work are: (a) development of a new phosphine ligand for the copper(I)-catalyzed hydroboration of internal alkynes and its subsequent reactions; and (b) use of the gold(I)-catalyzed Meyer–Shuster rearrangement in the synthesis of the C19–C30 bis-tetrahydrofuran (bis-THF) fragment of iriomoteolide-13a. A brief introduction is given in Chapter 1, focusing on the most recent progress in the development and application of copper(I)-catalyzed hydroboration of internal alkynes and gold(I)-catalyzed Meyer–Schuster rearrangement of propargylic alcohols. It is followed by an illustration of the research topics to be explored in this thesis work. Internal alkynes without a strong steric or electronic bias are the challenging substrates for the copper-catalyzed hydroboration. Presented in Chapter 2 are the results on extending our group's aromatic amide-derived phosphines (Aphos) to the copper-catalyzed hydroboration of unsymmetrical internal alkynes without strong electronic and steric biases. 2-(Diisopropylphosphino)-N,N-diisopropylbenzamide (Aphos^ip-H) is newly synthesized and used as the ligand in the copper-catalyzed hydroboration of internal alkynes using bis(pinocolato)diboron (B₂pin₂) with a broad substrate scope. The alkenyl boronate products are efficiently obtained with good regio- and stereoselectivity and high yields (up to 38 examples). The origin of the regioselectivity could be rationalized by a balanced steric interaction between the Aphos^ip-H-ligated copper catalyst and the alkyne substrates. Conjugated polyene molecules are prone to isomerization upon exposure to light, high temperatures, and basic/acidic conditions. It poses a challenge in organic synthesis. Chapter 3 deals with a one-pot synthesis of 1,3-dienes and polyenes by combination of the above described copper-catalyzed hydroboration of internal alkynes with the palladium-catalyzed Suzuki–Miyaura cross-coupling using Aphos^ip-H as the common ligand. The alkenyl boronates, without purification, undergo coupling reactions with alkenyl halides at 35 °C in the presence of a weak base (K₃PO₄·3H₂O) to furnish 1,3-dienes and conjugated polyenes. The palladium-catalyzed Suzuki–Miyaura cross-coupling of secondary alkyl boronates and related boron species is less common due to side reactions such as β-hydride elimination, protodeboration, and configuration erosion. Described in Chapter 4 are the results on the Pd–PhPCy₂-catalyzed Suzuki–Miyaura cross-coupling of aryl chlorides with racemic secondary potassium alkyltrifluoroboronates possessing a β-Weinreb-type amido moiety. The products are formed at 95 °C in CPME–H₂O mixed solvent system in moderate yields and can be transformed into aldehydes and ketones via conventional reactions. Finally, the results on synthesis of the C19–C30 fragment of…

Subjects/Keywords: Copper catalysts ; Alkynes ; Transition metal catalysts ; Organic compounds ; Synthesis

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APA (6^th Edition):

Zhao, H. C. (2017). Copper- and gold-catalyzed reactions of functionalized internal alkynes and synthesis of the C19-C30 fragment of iriomoteolide-13a. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-105584 ; https://doi.org/10.14711/thesis-991012564669003412 ; http://repository.ust.hk/ir/bitstream/1783.1-105584/1/th_redirect.html

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):

Zhao, Hui CHEM. “Copper- and gold-catalyzed reactions of functionalized internal alkynes and synthesis of the C19-C30 fragment of iriomoteolide-13a.” 2017. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-105584 ; https://doi.org/10.14711/thesis-991012564669003412 ; http://repository.ust.hk/ir/bitstream/1783.1-105584/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Zhao, Hui CHEM. “Copper- and gold-catalyzed reactions of functionalized internal alkynes and synthesis of the C19-C30 fragment of iriomoteolide-13a.” 2017. Web. 20 Jan 2021.

Vancouver:

Zhao HC. Copper- and gold-catalyzed reactions of functionalized internal alkynes and synthesis of the C19-C30 fragment of iriomoteolide-13a. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2017. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-105584 ; https://doi.org/10.14711/thesis-991012564669003412 ; http://repository.ust.hk/ir/bitstream/1783.1-105584/1/th_redirect.html.

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

Council of Science Editors:

Zhao HC. Copper- and gold-catalyzed reactions of functionalized internal alkynes and synthesis of the C19-C30 fragment of iriomoteolide-13a. [Thesis]. Hong Kong University of Science and Technology; 2017. Available from: http://repository.ust.hk/ir/Record/1783.1-105584 ; https://doi.org/10.14711/thesis-991012564669003412 ; http://repository.ust.hk/ir/bitstream/1783.1-105584/1/th_redirect.html

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

Georgia Tech

26. Liu, Hongying. Syntheses, structures, and catalysis of polynuclear metal complexes.

Degree: PhD, Chemistry, 1989, Georgia Tech

URL: http://hdl.handle.net/1853/30561

Subjects/Keywords: Metal catalysts; Catalysts; Catalysis

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APA (6^th Edition):

Liu, H. (1989). Syntheses, structures, and catalysis of polynuclear metal complexes. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/30561

Chicago Manual of Style (16^th Edition):

Liu, Hongying. “Syntheses, structures, and catalysis of polynuclear metal complexes.” 1989. Doctoral Dissertation, Georgia Tech. Accessed January 20, 2021. http://hdl.handle.net/1853/30561.

MLA Handbook (7^th Edition):

Liu, Hongying. “Syntheses, structures, and catalysis of polynuclear metal complexes.” 1989. Web. 20 Jan 2021.

Vancouver:

Liu H. Syntheses, structures, and catalysis of polynuclear metal complexes. [Internet] [Doctoral dissertation]. Georgia Tech; 1989. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1853/30561.

Council of Science Editors:

Liu H. Syntheses, structures, and catalysis of polynuclear metal complexes. [Doctoral Dissertation]. Georgia Tech; 1989. Available from: http://hdl.handle.net/1853/30561

Michigan State University

27. Phisanbut, Sawit. Selectivity of the polymer-supported Wilkinson's catalyst.

Degree: MS, Dept. of Chemistry, 1974, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:12214

Subjects/Keywords: Wilkinson's catalyst; Metal catalysts; Catalysts

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APA (6^th Edition):

Phisanbut, S. (1974). Selectivity of the polymer-supported Wilkinson's catalyst. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:12214

Chicago Manual of Style (16^th Edition):

Phisanbut, Sawit. “Selectivity of the polymer-supported Wilkinson's catalyst.” 1974. Masters Thesis, Michigan State University. Accessed January 20, 2021. http://etd.lib.msu.edu/islandora/object/etd:12214.

MLA Handbook (7^th Edition):

Phisanbut, Sawit. “Selectivity of the polymer-supported Wilkinson's catalyst.” 1974. Web. 20 Jan 2021.

Vancouver:

Phisanbut S. Selectivity of the polymer-supported Wilkinson's catalyst. [Internet] [Masters thesis]. Michigan State University; 1974. [cited 2021 Jan 20]. Available from: http://etd.lib.msu.edu/islandora/object/etd:12214.

Council of Science Editors:

Phisanbut S. Selectivity of the polymer-supported Wilkinson's catalyst. [Masters Thesis]. Michigan State University; 1974. Available from: http://etd.lib.msu.edu/islandora/object/etd:12214

University of Johannesburg

28. Nelana, Simphiwe Maurice. Nitrogen-based nickel and palladium complexes as catalysts for olefin oligomerization, Heck and Suzuki coupling reactions.

Degree: PhD, 2009, University of Johannesburg

URL: http://hdl.handle.net/10210/2381

► This thesis deals with the synthesis of nitrogen-donor compounds and their reaction with metal ions. The first type of nitrogen-donor compounds are the unconjugated diimines… (more)

▼ This thesis deals with the synthesis of nitrogen-donor compounds and their reaction with metal ions. The first type of nitrogen-donor compounds are the unconjugated diimines (N,N´-bis(diphenylmethylene)ethylenediamine (L1) and (N,N´-bis(diphenylmethylene)propylenediamine (L2). Compounds L1 and L2 were reacted with [NiBr2(DME)] or [NiCl2·6H2O] to form complexes (2.1a), (2.2a), (2.3a) and (2.4a). These nickel complexes were characterized by IR spectroscopy, elemental analysis and mass spectrometry. When the complexes were left in chloroform for prolonged periods, hydrolysis of the diimine ligand took place, leading to the formation of nickel complexes 2.1b, 2.2b, 2.3b and 2.4b. The identity of the hydrolysed nickel complexes 2.1b and 2.2b was confirmed by single crystal X-ray crystallography. Complex 2.1b crystallised in the P21/n space group, whilst 2.2b crystallised in the P-1 space group. Compounds L1 and L2 were also reacted with [PdClMe(MeCN)2] to form the palladium complexes (3.1) and (3.2). The palladium complexes were characterized by NMR spectroscopy, elemental analysis and single crystal X-ray crystallography. Attempts to recrystallize 3.1 from a dichloromethane solution led to the formation of 3.1a. Both complexes 3.1a and 3.2 crystallised in the P21/n space group. Complexes 3.1 and 3.2 were tested as catalysts for the Heck coupling reaction of iodobenzene with methyl acrylate or butyl acrylate at 80 C. The products from the coupling reactions were characterized by GC and NMR spectroscopy. These complexes were found to be highly active with 100% conversions observed in some instances. The second type of ligands that were prepared are the benzoylpyrazolyl compounds, (3,5-dimethylpyrazol-1-yl)phenylmethanone (C1), (3,5-ditertiarybutylpyrazol-1-yl)phenylmethanone (C2), (3,5-dimethylpyrazol-1-yl)-o-toluoylmethanone (C3), (3,5-ditertiarybutylpyrazol-1-yl)-o-toluoylmethanone (C4), (2-chlorophenyl)-(3,5-dimethylpyrazol-1-yl)methanone (C5), (2-chlorophenyl)-(3,5-ditertiarybutylpyrazol-1-yl)methanone (C6), (2-flourophenyl)-(3,5-dimethylpyrazol-1-yl)methanone (C7), (2-flourophenyl)-(3,5-ditertiarybutylpyrazol-1-yl)methanone (C8). These compounds were fully characterized using NMR spectroscopy, IR spectroscopy and elemental analysis. Compounds C1, C3, C5 and C7 were reacted with [NiBr2(DME)] to form nickel complexes (4.31-4.34). These nickel complexes were found to be insoluble in all common organic solvents and hence were characterized only by IR spectroscopy and elemental analysis. Compounds C1-C8 were also reacted with [PdCl2(MeCN)2] to form palladium complexes (4.35-4.42). Complexes 4.35-4.42 were characterized using NMR spectroscopy, IR spectroscopy, elemental analysis and in selected cases single crystal X-ray crystallography. Complex 4.39 crystallised in the C2/n space group and complex 4.42 crystallised in the P21/n space group. Attempts to recrystallize 4.37a led to the formation of 4.37b, which contains both 3,5-dimethylpyrazol-1-yl)-o-toluoylmethanone and 3,5-dimethylpyrazole as ligands. Complex 4.37b was…

Subjects/Keywords: Nickel compounds; Nickel catalysts; Palladium compounds; Palladium catalysts; Alkenes; Transition metal compounds synthesis

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APA (6^th Edition):

Nelana, S. M. (2009). Nitrogen-based nickel and palladium complexes as catalysts for olefin oligomerization, Heck and Suzuki coupling reactions. (Doctoral Dissertation). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/2381

Chicago Manual of Style (16^th Edition):

Nelana, Simphiwe Maurice. “Nitrogen-based nickel and palladium complexes as catalysts for olefin oligomerization, Heck and Suzuki coupling reactions.” 2009. Doctoral Dissertation, University of Johannesburg. Accessed January 20, 2021. http://hdl.handle.net/10210/2381.

MLA Handbook (7^th Edition):

Nelana, Simphiwe Maurice. “Nitrogen-based nickel and palladium complexes as catalysts for olefin oligomerization, Heck and Suzuki coupling reactions.” 2009. Web. 20 Jan 2021.

Vancouver:

Nelana SM. Nitrogen-based nickel and palladium complexes as catalysts for olefin oligomerization, Heck and Suzuki coupling reactions. [Internet] [Doctoral dissertation]. University of Johannesburg; 2009. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10210/2381.

Council of Science Editors:

Nelana SM. Nitrogen-based nickel and palladium complexes as catalysts for olefin oligomerization, Heck and Suzuki coupling reactions. [Doctoral Dissertation]. University of Johannesburg; 2009. Available from: http://hdl.handle.net/10210/2381

Western Washington University

29. Bowker, Richard H. Hydrodesulfurization and hydrodeoxygenation over noble metal phosphide catalysts.

Degree: MS, Chemistry, 2011, Western Washington University

URL: https://doi.org/10.25710/jamf-br70 ; https://cedar.wwu.edu/wwuet/177

► As the demand and price for crude petroleum continues to increase, unconventional sources of petroleum, including tar sands, oil shales, and bio-derived oils have… (more)

▼ As the demand and price for crude petroleum continues to increase, unconventional sources of petroleum, including tar sands, oil shales, and bio-derived oils have become economically viable feedstocks. Previously, these oil reserves were deemed too costly to process into fuels due to the high impurity content (S, N, O) of the unrefined feedstocks. The decline in conventional oil reserves has focused increasing attention on utilizing these unconventional feedstocks. However, stringent environmental regulations governing fuel impurity content require refineries to remove these impurities in increasing amounts. Current hydrotreatment catalysts are unable to effectively remove theses impurities in sufficient quantities to meet government regulation. The goal of this research is to develop more effective hydrotreatment catalysts for upgrading unconventional feedstocks and producing ultra clean fuels. Previous research in the Bussell laboratory has shown that silica-supported nickel phosphide (Ni2P/SiO2) catalysts were highly effective at processing high boiling-point, organosulfur impurities and had excellent resistance to sulfur deactivation. In this research, several silica-supported noble metal phosphide catalysts were prepared and their hydrodesulfurization (HDS) and hydrodeoxygenation (HDO) properties were evaluated and compared with several commercial catalysts. Silica-supported rhodium phosphide (Rh2P/SiO2) had a higher dibenzothiophene (DBT) HDS activity than either silica-supported rhodium metal (Rh/SiO2) or rhodium sulfide (sulf. Rh/SiO2), and was also more active than a Ni-Mo/Al2O3 commercial catalyst. Due to limited active site densities in the as-prepared catalysts, silica-supported palladium phosphide (Pd3P/SiO2, Pd5P2/SiO2) catalysts were less active than the commercial Ni-Mo/Al2O3 catalyst. However, turnover frequencies (TOFs) and sulfur analyses of the HDS-tested palladium phosphides revealed high DBT HDS activity on a per site basis, and an increased resistance to sulfur incorporation compared to Pd/SiO2, suggesting a high HDS potential for the palladium phosphide catalysts if the site density can be optimized. Silica-supported ruthenium phosphides (RuP/SiO2 and Ru2P/SiO2) were also prepared and tested for furan HDO activity. Ru2P/SiO2 outperformed silica-supported ruthenium (Rh/SiO2) and RuP/SiO2 catalysts, as well as a Co-Mo/Al2O3 commercial catalyst, while exhibiting excellent selectivity toward C4 hydrocarbon products. Advisors/Committee Members: Bussell, Mark E., Gilbertson, John D., O'Neil, Gregory (Gregory W.).

Subjects/Keywords: Chemistry; Petroleum – Refining – Desulfurization; Petroleum – Refining – Deoxidizing; Hydrotreating catalysts – Synthesis; Metal catalysts – Synthesis; masters theses

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APA (6^th Edition):

Bowker, R. H. (2011). Hydrodesulfurization and hydrodeoxygenation over noble metal phosphide catalysts. (Masters Thesis). Western Washington University. Retrieved from https://doi.org/10.25710/jamf-br70 ; https://cedar.wwu.edu/wwuet/177

Chicago Manual of Style (16^th Edition):

Bowker, Richard H. “Hydrodesulfurization and hydrodeoxygenation over noble metal phosphide catalysts.” 2011. Masters Thesis, Western Washington University. Accessed January 20, 2021. https://doi.org/10.25710/jamf-br70 ; https://cedar.wwu.edu/wwuet/177.

MLA Handbook (7^th Edition):

Bowker, Richard H. “Hydrodesulfurization and hydrodeoxygenation over noble metal phosphide catalysts.” 2011. Web. 20 Jan 2021.

Vancouver:

Bowker RH. Hydrodesulfurization and hydrodeoxygenation over noble metal phosphide catalysts. [Internet] [Masters thesis]. Western Washington University; 2011. [cited 2021 Jan 20]. Available from: https://doi.org/10.25710/jamf-br70 ; https://cedar.wwu.edu/wwuet/177.

Council of Science Editors:

Bowker RH. Hydrodesulfurization and hydrodeoxygenation over noble metal phosphide catalysts. [Masters Thesis]. Western Washington University; 2011. Available from: https://doi.org/10.25710/jamf-br70 ; https://cedar.wwu.edu/wwuet/177

Western Washington University

30. Cochran, Paul M. The Deoxygenation and Hydrogenation Properties of Noble Metal-Based Bimetallic Phosphide Catalysts.

Degree: MS, Chemistry, 2016, Western Washington University

URL: https://doi.org/10.25710/xxng-vk08 ; https://cedar.wwu.edu/wwuet/519

► With increasing concern regarding the environmental impacts of fossil fuels, and the difficulty of extracting petroleum feedstocks, alternative liquid fuels are becoming more desirable.… (more)

Subjects/Keywords: Chemistry; Ruthenium catalysts; Phosphides – Properties; Phosphides – Deoxidizing, Hydrogenation, Biomass energy; Metal catalysts; masters theses

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APA (6^th Edition):

Cochran, P. M. (2016). The Deoxygenation and Hydrogenation Properties of Noble Metal-Based Bimetallic Phosphide Catalysts. (Masters Thesis). Western Washington University. Retrieved from https://doi.org/10.25710/xxng-vk08 ; https://cedar.wwu.edu/wwuet/519

Chicago Manual of Style (16^th Edition):

Cochran, Paul M. “The Deoxygenation and Hydrogenation Properties of Noble Metal-Based Bimetallic Phosphide Catalysts.” 2016. Masters Thesis, Western Washington University. Accessed January 20, 2021. https://doi.org/10.25710/xxng-vk08 ; https://cedar.wwu.edu/wwuet/519.

MLA Handbook (7^th Edition):

Cochran, Paul M. “The Deoxygenation and Hydrogenation Properties of Noble Metal-Based Bimetallic Phosphide Catalysts.” 2016. Web. 20 Jan 2021.

Vancouver:

Cochran PM. The Deoxygenation and Hydrogenation Properties of Noble Metal-Based Bimetallic Phosphide Catalysts. [Internet] [Masters thesis]. Western Washington University; 2016. [cited 2021 Jan 20]. Available from: https://doi.org/10.25710/xxng-vk08 ; https://cedar.wwu.edu/wwuet/519.

Council of Science Editors:

Cochran PM. The Deoxygenation and Hydrogenation Properties of Noble Metal-Based Bimetallic Phosphide Catalysts. [Masters Thesis]. Western Washington University; 2016. Available from: https://doi.org/10.25710/xxng-vk08 ; https://cedar.wwu.edu/wwuet/519

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