Synthesis and Electrical Properties of New Solid State Electrolyte Materials Ce_(6-x)Ho_xMoO_(15-δ)(0.0≤x≤1.2)  

作　　者：ZHOU De-feng XIA Yan-jie MENG Jian 

机构地区：[1]School of Biological Engineering, Changchun University of Technology, Changchun 130012, P. R. China [2]Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P R. China

出　　处：《Chemical Research in Chinese Universities》2009年第1期9-12,共4页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Nos.20671088, 20871023);Jilin Provincial Science Re-search Foundation, China(No.20070510).

摘　　要：Ce6-xHoxMoO15-δ（0.0≤x≤1.2） was synthesized by modified sol-gel method and characterized by differential X-ray diffraction（XRD）, Raman, and X-ray photoelectron spectroscopy（XPS） methods. The oxide ionic conductivity of the samples was investigated by AC impedance spectroscopy. It shows that all the samples are single phase with a cubic fluorite structure. The solid solution Ce6-xHoxMoO15-δ（x=0.6） was detected to be the best conducting phase with the highest conductivity（σ1=1.05×10^-2 S/cm） at 800 ℃ and the lowest activation energy（Ea=1.09 eV）. These properties suggest that this kind of material has a potential application in intermediate-low temperature solid oxide fuel ceils.Ce6-xHoxMoO15-δ（0.0≤x≤1.2） was synthesized by modified sol-gel method and characterized by differential X-ray diffraction（XRD）, Raman, and X-ray photoelectron spectroscopy（XPS） methods. The oxide ionic conductivity of the samples was investigated by AC impedance spectroscopy. It shows that all the samples are single phase with a cubic fluorite structure. The solid solution Ce6-xHoxMoO15-δ（x=0.6） was detected to be the best conducting phase with the highest conductivity（σ1=1.05×10^-2 S/cm） at 800 ℃ and the lowest activation energy（Ea=1.09 eV）. These properties suggest that this kind of material has a potential application in intermediate-low temperature solid oxide fuel ceils.

关 键 词：Solid electrolyte CONDUCTIVITY Sol-gel method SOFCS 

分 类 号：TM242[一般工业技术—材料科学与工程]