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 conduc...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.展开更多
基金Supported by the National Natural Science Foundation of China(Nos.20671088, 20871023)Jilin Provincial Science Re-search Foundation, China(No.20070510).
文摘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.
