Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


case1298570837.pdf (4.86 MB)

ETD Abstract Container

Abstract Header

Selenium and Nitrogen-Doped Graphite Elecetrocatalyst Studies for a Proton Exchange Membrane Fuel Cell

Kurak, Kiera A.
http://rave.ohiolink.edu/etdc/view?acc_num=case1298570837

Abstract Details

2011, Doctor of Philosophy, Case Western Reserve University, Chemistry.
Properties of non-platinum materials, nitrogen doped graphite and trigonal selenium were calculated using quantum theory to determine their catalytic ability for the oxygen reduction reaction. The major part of study was carried out by imputing calculated adsorption energies into a linear Gibbs energy relationship to predict reversible potentials for the reduction step. Additional predictions of reversible potentials were made using a comprehensive theory for the Gibbs energy of the electrochemical interface. Trigonal selenium was predicted to catalyze the four-electron oxygen reduction reaction with a limiting reversible potential of ~0.7 V, which is similar to platinum. Nitrogen-doped graphite was shown to catalyze the ORR only via the two-electron pathway. Preliminary complete Gibbs energy calculations including solvent produced reversible potentials for two-electron reduction over nitrogen-doped graphite comparable to those predicted by the simple linear Gibbs energy relationship.
Clemens Burda, PhD (Committee Chair)
Alfred Anderson, PhD (Advisor)
James Burgess, PhD (Committee Member)
John Stuehr, PhD (Committee Member)
Robert Savinell, PhD (Committee Member)
136 p.
Chemistry
electrocatalysis; theory; fuel cells; chemistry; novel catalysts

Recommended Citations

Citations

  • Kurak, K. A. (2011). Selenium and Nitrogen-Doped Graphite Elecetrocatalyst Studies for a Proton Exchange Membrane Fuel Cell [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1298570837

    APA Style (7th edition)

  • Kurak, Kiera. Selenium and Nitrogen-Doped Graphite Elecetrocatalyst Studies for a Proton Exchange Membrane Fuel Cell. 2011. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1298570837.

    MLA Style (8th edition)

  • Kurak, Kiera. "Selenium and Nitrogen-Doped Graphite Elecetrocatalyst Studies for a Proton Exchange Membrane Fuel Cell." Doctoral dissertation, Case Western Reserve University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1298570837

    Chicago Manual of Style (17th edition)

case1298570837
1,428
© 2011, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.
Release 3.2.12