ERA

Download the full-sized PDF of Investigation of the Double-Trap Intrinsic Kinetic Equation for the Oxygen Reduction Reaction and its implementation into a Membrane Electrode Assembly model.Download the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R38358

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Investigation of the Double-Trap Intrinsic Kinetic Equation for the Oxygen Reduction Reaction and its implementation into a Membrane Electrode Assembly model. Open Access

Descriptions

Other title
Subject/Keyword
pem fuel cell
double-trap kinetic equation
ORR
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Moore, Michael
Supervisor and department
Secanell, Marc (Department of Mechanical Engineering)
Examining committee member and department
Mitra, Sushanta (Department of Mechanical Engineering)
Bergens, Steven (Department of Chemistry)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2012-09-17T13:39:30Z
Graduation date
2012-09
Degree
Master of Science
Degree level
Master's
Abstract
A significant contributor to performance loss in polymer electrolyte fuel cells is the oxygen reduction reaction (ORR). A major challenge facing researchers is the development of a kinetic model that accurately accounts for ORR kinetics. Wang et al. proposed a kinetic model that assumes the ORR is comprised of four intermediate steps and two intermediate species. The model can predict the commonly observed doubling of the Tafel slope. The model had several limitations such as underpredicting Tafel slopes at low overpotentials. In this work, the model is extended to better account for oxygen depletion and the backward reactions. Parameter estimation is used to determine new kinetic parameters. The new kinetic model and parameters provide a good match to the experimental data used to obtain the kinetic parameters. Implementation of this model into a high-fidelity MEA model matches experimental data over numerous operating conditions and catalyst layer compositions.
Language
English
DOI
doi:10.7939/R38358
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-04-24T22:53:32.990+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 5721946
Last modified: 2015:10:12 12:00:49-06:00
Filename: Moore_Michael_Fall_2012.pdf
Original checksum: f2ce8020a9905abac2fb11cf2d118a5a
Well formed: false
Valid: false
Status message: No document catalog dictionary offset=0
Activity of users you follow
User Activity Date