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Analysis of Urea Electrolysis for Generation of Hydrogen

Singh, Deepika
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1258349080

Abstract Details

2009, Master of Science (MS), Ohio University, Chemical Engineering (Engineering and Technology).
The oxidation of urea was studied as a means of remediating urine-rich waste water to produce hydrogen and simultaneously denitrificating the waste water. The proposed eaction mechanisms, preferred pathway and rate determining steps have been predicted using Density Functional Theory calculations. Both the electro-oxidation reaction as well as the chemical oxidation reaction mechanisms have been postulated on the surface of the active catalyst NiOOH. The preferred pathway for electro-oxidation was found to be: *CO(NH2)2→ *CO(NH.NH2)→ *CO(NH.NH)→ *CO(NH.N)→ *CO(N2)→ *CO(OH)→ *CO(OH.OH)→ *CO2 with desorption of CO2 as the rate limiting step. From the thermodynamic calculations of the chemical oxidation reactions, it was evident that the presence of OH- catalyzes the reaction. Experimentally,the effects of varying concentrations of KOH and urea were investigated. The experimental results supported the argument that a higher concentration of OH- is more favorable for the reaction.
Dr Gerardine Botte (Advisor)
Dr Howard Dewald (Committee Member)
Dr Valerie Young (Committee Member)
Dr Daniel Gulino (Committee Member)
100 p.
Chemical Engineering
Urea Electrolysis; Catalysis; NiOOH electrode; DFT Calculations

Recommended Citations

Citations

  • Singh, D. (2009). Analysis of Urea Electrolysis for Generation of Hydrogen [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1258349080

    APA Style (7th edition)

  • Singh, Deepika. Analysis of Urea Electrolysis for Generation of Hydrogen. 2009. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1258349080.

    MLA Style (8th edition)

  • Singh, Deepika. "Analysis of Urea Electrolysis for Generation of Hydrogen." Master's thesis, Ohio University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1258349080

    Chicago Manual of Style (17th edition)

ohiou1258349080
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© 2009, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.