Study of electron-oxide ion mixed conduction in SOFC cathode materials by MEM

Ito, Takanori*; Yokote, Takenori*; Kitamura, Naoto*; Idemoto, Yasushi*; Sakuma, Takashi*; Takahashi, Haruyuki*; Igawa, Naoki

The investigation and development of the cathode materials are one of the major subjects to decrease the operation temperature for solid oxide fuel cell. In this study, we measured the neutron and synchrotron X-ray diffraction of La $_{0.73}$ Sr $_{0.24}$ MnO $_{3}$ and (Ba $_{0.5}$ Sr $_{0.5}$ )(Co $_{0.8}$ Fe $_{0.2}$ )O $_{3-delta}$ . We discuss the mechanism of the electron-oxide ion mixed conduction from the Rietveld and the maximum entropy method analyses.

Language	:	Japanese
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Meeting title	:	電気化学会第75回大会
Held date	:	2008/03
Location (city)	:	甲府
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Registration No. : BB20073478
JAEA Abstracts No. :
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