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You searched for subject:(Fule). Showing records 1 – 3 of 3 total matches.

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New Jersey Institute of Technology

1. Valluri, Siva Kumar. Development and analysis of aluminum-PTFE reactive composite material.

Degree: MSin Chemical Engineering - (M.S.), Chemical, Biological and Pharmaceutical Engineering, 2016, New Jersey Institute of Technology

The shortcomings of micron sized aluminum due to the oxide barrier and two phase loses pose a hindrance for its efficient use as a fuel. In this study a fluoropolymer; Teflon’s inclusion in micron sized -325 mesh aluminum is suggested as a replacement to aluminum. Aluminum Teflon based energetic material see great potential for use in pyrotechnics, propellants and even explosives. A composite with composition Al-PTFE (90-10 wt. %) is prepared through Cryomilling and is shown to be a better method of preparation as compared to room temperature milling. The prepared materials are studied to identify best conditions. The analysis methods include thermal studies both aerobic and anaerobic, Mass Spectrometry, XRD analysis and ESD experiments. The best materials are shown to retain the Teflon till higher temperatures as compared with other materials such as nano powder mixtures and milled composites of Al-PTFE, both of composition (70-30 wt. %). The milled material exhibits two exothermic peaks at 405.4°C and 540°C which correspond to the phenomena of fluorine’s interaction with the oxide to form aluminum fluoride and the phase transition into a more stable fluoride of aluminum respectively. The activation energy for these reactions are on the higher side at 145.8 and 266.4 kJ/mol. This study offers a better milling process to make more reactive composites of micron sized Al and granular Teflon (PTFE). Advisors/Committee Members: Edward L. Dreyzin, R. P. T. Tomkins, Mirko Schoenitz.

Subjects/Keywords: Aluminum-PTFE; Fule; Aluminum teflon; Chemical Engineering

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

APA (6th Edition):

Valluri, S. K. (2016). Development and analysis of aluminum-PTFE reactive composite material. (Thesis). New Jersey Institute of Technology. Retrieved from https://digitalcommons.njit.edu/theses/281

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

Chicago Manual of Style (16th Edition):

Valluri, Siva Kumar. “Development and analysis of aluminum-PTFE reactive composite material.” 2016. Thesis, New Jersey Institute of Technology. Accessed November 14, 2019. https://digitalcommons.njit.edu/theses/281.

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

MLA Handbook (7th Edition):

Valluri, Siva Kumar. “Development and analysis of aluminum-PTFE reactive composite material.” 2016. Web. 14 Nov 2019.

Vancouver:

Valluri SK. Development and analysis of aluminum-PTFE reactive composite material. [Internet] [Thesis]. New Jersey Institute of Technology; 2016. [cited 2019 Nov 14]. Available from: https://digitalcommons.njit.edu/theses/281.

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

Council of Science Editors:

Valluri SK. Development and analysis of aluminum-PTFE reactive composite material. [Thesis]. New Jersey Institute of Technology; 2016. Available from: https://digitalcommons.njit.edu/theses/281

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

2. Vadher, R M. Dalit vimarsh evam om prakash valmiki ka sahitya; -.

Degree: Hindi, 2015, Saurashtra University

None

Bibliography p.599-607

Advisors/Committee Members: Kalasva, B K.

Subjects/Keywords: Dalit vimarsh; Mahatma Fule; Om prakash valmiki; Sahitya

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

APA (6th Edition):

Vadher, R. M. (2015). Dalit vimarsh evam om prakash valmiki ka sahitya; -. (Thesis). Saurashtra University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/42871

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

Chicago Manual of Style (16th Edition):

Vadher, R M. “Dalit vimarsh evam om prakash valmiki ka sahitya; -.” 2015. Thesis, Saurashtra University. Accessed November 14, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/42871.

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

MLA Handbook (7th Edition):

Vadher, R M. “Dalit vimarsh evam om prakash valmiki ka sahitya; -.” 2015. Web. 14 Nov 2019.

Vancouver:

Vadher RM. Dalit vimarsh evam om prakash valmiki ka sahitya; -. [Internet] [Thesis]. Saurashtra University; 2015. [cited 2019 Nov 14]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/42871.

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

Council of Science Editors:

Vadher RM. Dalit vimarsh evam om prakash valmiki ka sahitya; -. [Thesis]. Saurashtra University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/42871

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


Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)

3. Papazisi, Kalliopi-Maria. Αναγεννούμενες κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης (RPEMFC).

Degree: 2013, Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)

Fuel cells represent one of the most promising technologies for the production of clean energy. They offer several advantages such as high efficiency and reliability, fuel flexibility, low maintenance cost and distributed power generation. Among other technologies, Polymer Exchange Membrane (PEM) fuel cells are the best option for low temperature applications (< 100 °C), zero gas emissions and quick start up/shut down of the system. In recent years, worldwide research has focused in the development of PEM type water electrolysers for the production of high purity hydrogen and oxygen providing the required energy for electrolysis. Furthermore, development of self-sustaining systems producing and consuming energy according to the current energy demand is of great interest. An example of such a system is the Regenerative or Reversible PEM fuel cell, which combine a PEM electrolyser for hydrogen and oxygen production which are consequently stored, and a PEM fuel cell for electricity production from stored gases. Unitized Regenerative PEM fuel cells combine the two systems in one compact cell. Despite of the various advantages, this system faces major limitations, like: (a) efficiency and stability of the bifunctional oxygen electrode, (b) corrosion of carbon, GDL and bipolar plates. Additionally, the high anodic overpotentials needed for the oxygen evolution reaction limit the stability and life time of the supported catalyst. Materials usually used as bifunctional oxygen electrode electrocatalysts are Pt and Ir. The main objective of the present study was the development of nanostructured Ir-based oxide electrocatalysts with high surface area of the type IrxM1-xO2, M=Pt or Ru with high efficiency and stability for the oxygen evolution reaction in PEM electrolysers and for the oxygen reduction reaction in Unitized Regenerative PEM fuel cells. In particular, two families of oxides were synthesized: a. IrxPt1-xO2, x=1, 0.8, 0.5 and 0.2 and b. IryRu1-yO2, y=1, 0.9, 0.7 and 0.5 using the modified Adams fusion synthesis method. All oxides consisted of small particles with the desired structure and composition. The intrinsic electrocatalytic activity and stability during redox cycling were studied with cyclic and linear scan voltammetry. The most efficient and stable oxides for the oxygen evolution reaction were identified and developed as anode oxygen electrodes in membrane electrode assemblies (MEA) using electrolytic membrane Nafion®115 and commercial hydrogen electrode (Pt/C). Pure IrO2 was the most stable and efficient electrocatalyst for oxygen evolution reaction, while the mixed oxide Ir0.5Ru0.5O2 although presented lower performance it exhibits remarkable stability. Concerning bimetallic Ir-Pt oxides, the prospective bifunctional operation in both reduction and oxygen evolution was not observed. Among these oxides, the best performance for water splitting was achieved with Ir0.5Pt0.5O2, but IrO2 still has the highest efficiency.

Οι κυψέλες καυσίμου αποτελούν μια πολλά υποσχόμενη τεχνολογία για την παραγωγή καθαρής…

Subjects/Keywords: Κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης; Διατάξεις ηλεκτρόλυσης τύπου πολυμερικής μεμβράνης; Αναγεννούμενες κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης; Ηλεκτροκαταλύτες; Αντίδραση έκλυσης οξυγόνου; Διλειτουργικά ηλεκτρόδια; Οξείδια με βάση το ιρίδιο; PEM fule cells; Water PEM electrolysers; Regenerative PEM fuell cells (RPEMFC); Electrocatalysts; Oxygen evolution reaction; Bifunctional electrodes; Iridium based oxides

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

APA (6th Edition):

Papazisi, K. (2013). Αναγεννούμενες κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης (RPEMFC). (Thesis). Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ). Retrieved from http://hdl.handle.net/10442/hedi/30466

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

Chicago Manual of Style (16th Edition):

Papazisi, Kalliopi-Maria. “Αναγεννούμενες κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης (RPEMFC).” 2013. Thesis, Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ). Accessed November 14, 2019. http://hdl.handle.net/10442/hedi/30466.

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

MLA Handbook (7th Edition):

Papazisi, Kalliopi-Maria. “Αναγεννούμενες κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης (RPEMFC).” 2013. Web. 14 Nov 2019.

Vancouver:

Papazisi K. Αναγεννούμενες κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης (RPEMFC). [Internet] [Thesis]. Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); 2013. [cited 2019 Nov 14]. Available from: http://hdl.handle.net/10442/hedi/30466.

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

Council of Science Editors:

Papazisi K. Αναγεννούμενες κυψέλες καυσίμου τύπου πολυμερικής μεμβράνης (RPEMFC). [Thesis]. Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); 2013. Available from: http://hdl.handle.net/10442/hedi/30466

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

.