Microstructural characteristics of SDC electrolyte film supported by Ni-SDC cermet anode

Ou, Ding Rong, Mori, Toshiyuki, Ye, Fei, Miyayama, Masaru, Nakayama, Satoshi, Zou, Jin, Auchterlonie, Graeme J. and Drennan, John (2009) Microstructural characteristics of SDC electrolyte film supported by Ni-SDC cermet anode. Journal of the Electrochemical Society, 156 7: B825-B830. doi:10.1149/1.3129436

Author Ou, Ding Rong
Mori, Toshiyuki
Ye, Fei
Miyayama, Masaru
Nakayama, Satoshi
Zou, Jin
Auchterlonie, Graeme J.
Drennan, John
Title Microstructural characteristics of SDC electrolyte film supported by Ni-SDC cermet anode
Journal name Journal of the Electrochemical Society   Check publisher's open access policy
ISSN 0013-4651
Publication date 2009-05-14
Sub-type Article (original research)
DOI 10.1149/1.3129436
Volume 156
Issue 7
Start page B825
End page B830
Total pages 6
Editor Paul A. Kohl
Place of publication Pennington, NJ, United States
Publisher Electrochemical Society
Collection year 2010
Language eng
Subject C1
970109 Expanding Knowledge in Engineering
970110 Expanding Knowledge in Technology
850404 Solid Oxide Fuel Cells
091201 Ceramics
100712 Nanoscale Characterisation
Abstract As a promising electrolyte material for intermediate-temperature solid oxide fuel cells operated at a temperature of <= 600 degrees C, a Sm0.2Ce0.8O1.9 (SDC) film supported by a Ni-SDC cermet anode was prepared through electrophoretic deposition. Detailed microstructural features of the electrolyte film were studied. In the region away from the interface, the microstructure of the SDC film is similar to that of the SDC bulk sample, containing nanosized domains embedded in a fluorite matrix. However, in the region near the interface, the diffusion of Ni from the cermet anode to the electrolyte film was observed with a depth of about 1 mu m. Furthermore, the reduction in Ce and a high degree of oxygen vacancy ordering can be noticed in the interfacial region at the electrolyte side. It is suggested that these microstructural features could have negative impacts on the ionic conductivity of the electrolyte films.
Keyword Cerium compounds
Crystal microstructure
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Issue section: Fuel Cells and Energy Conversion

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
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Created: Thu, 03 Sep 2009, 07:50:15 EST by Mr Andrew Martlew on behalf of School of Mechanical and Mining Engineering