Preprints of Annual Meeting of The Ceramic Society of Japan
Preprints of Fall Meeting of The Ceramic Society of Japan
18th Fall Meeting of The Ceramic Society of Japan & 1st Asia-Oceania Ceramic Federation (AOCF) Conference
Session ID : 1PK03
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Host: The Ceramic Society of Japan

Crystal structural analysis of ceria by high-temperature synchrotron powder diffractometry
*Yoshihiro Yamamoto, Masatomo Yashima, Syuuhei Kobayashi, Qi Xu, Kenjiro Oh-uchi, Wataru Nakamura, Yoshiaki Ando, Takayuki Tsuji, Masahiko Tanaka, Takeharu Mori, Hiroyuki Kageyama, Katsuhiro Nomura, Takuya Hashimoto
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Keywords: Rietveld analysis, Synchrotron X-ray powder diffraction, ceria, ionic conductivity
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Abstract

Cerium dioxide- (ceria, CeO2) based materials are of considerable interest for potential use as electrolytes in solid oxide fuel cells (SOFCs) due to higher oxygen ionic conductivity than that of stabilized zilconia and a lower cost comparing with lanthanum gallate-based phases. Crystal structure of CeO2 was investigated by the Rietveld analysis of synchrotron X-ray powder diffraction data measured at 873, 1273 and 1709K. The crystal structure of CeO2 at 873, 1273 and 1709K was successfully refined assuming the Fm-3m space group.

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© The Ceramic Society of Japan 2005
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