ERA

Download the full-sized PDF of Cathode Materials Development for Proton Conducting SOFCsDownload the full-sized PDF

Actions

Download  |  Analytics

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Faculty of Graduate Studies and Research

Collections

This file is in the following collections:

Theses and Dissertations

Cathode Materials Development for Proton Conducting SOFCs Open Access

Descriptions

Other title
Subject/Keyword
cathode materials
Citrate-nitrate combustion method
spin coating
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Zhou, Guihua
Supervisor and department
Luo, Jingli (Department of Chemical and Materials Engineering)
Examining committee member and department
Gallart, Marc Secanell (Department of Mechnical Engineering)
Etsell, Thomas (Department of Chemical and Material Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical Engineering
Date accepted
2012-01-05T12:20:27Z
Graduation date
2012-06
Degree
Master of Science
Degree level
Master's
Abstract
Thin film electrolyte and new cathode catalysts were developed to improve the performance of proton conducting solid oxide fuel cells (SOFCs). Electrolyte BaCe0.7Zr0.1Y0.2O3-δ; (BCZY) and cathode materials La0.6Sr0.4Co0.2Fe0.8O3-δ; (LSCF) and Sr0.7Ce0.3MnO3-δ; (SCM) were synthesized using the citrate-nitrate combustion method, and characterized using XRD. Thin film electrolyte was successfully prepared using a spin coating technique. Two cathode catalysts were developed: a composite cathode comprising Ag-modified LSCF+BCZY, and SCM. Chemical compatibility between LSCF and BCZY and chemical stability of LSCF in CO2-containing atmosphere were demonstrated. The electrochemical performance of the composite cathode was dependent on Ag content in the composite cathode, peaking at a power density of 563 mW.cm-2 at 700 °C for Ni+BCZY|BCZY|10 wt% Ag-(LSCF+BCZY) thin film button cell. The performance of SCM was dependent on the cathode firing temperature. The highest peak power density, 378 mW.cm-2, was obtained at 700 °C for Ni+BCZY|BCZY|SCM single cell with SCM fired at 1100 °C.
Language
English
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
No

File Details

Date Uploaded
Date Modified
2014-04-29T16:41:33.246+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: 2877249
Last modified: 2015:10:12 10:41:31-06:00
Filename: Zhou_Guihua_Spring 2012.pdf
Original checksum: 5431b6cf2c785c577234efbabe112d68
Well formed: false
Valid: false
Status message: Unexpected error in findFonts java.lang.ClassCastException: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject cannot be cast to edu.harvard.hul.ois.jhove.module.pdf.PdfDictionary offset=2844
Status message: Invalid Annotation list offset=2839008
Status message: Outlines contain recursive references.
File title: Chapter 1 Introduction
Activity of users you follow
User Activity Date