Comparison between Y-doped ceria and Ho-doped ceria: Electrical conduction and microstructures

Ding Rong Ou, Toshiyuki Mori, Fei Ye, Jin Zou and John Drennan

Renewable Energy, 2008, vol. 33, issue 2, 197-200

Abstract: The electrical conduction and microstructure in Y-doped ceria and Ho-doped ceria were investigated. Visible differences between the two doped ceria were observed. The plots of conductivity of Y-doped ceria are well fit to the Arrhenius behavior, while curvature and kinks were observed on the plots of Ho-doped ceria. Such deviation from the Arrhenius behavior could be related to the existence of precipitates in Ho-doped ceria. It indicates that the electrolytic conductivity of doped ceria could be significantly influenced by microstructure features.

Keywords: Microstructure; Electrical properties; Rare-earth oxides; Solid electrolyte; Fuel cell; TEM (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:33:y:2008:i:2:p:197-200

DOI: 10.1016/j.renene.2007.05.005

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