Preparation, Characterization and Intermediate-Temperature Electrochemical Properties of Er3+-Doped Barium Cerate-Sulphate Composite Electrolyte

被引：6
作者：
Wu, Fufang [1 ]
Du, Ruifeng [1 ]
Hu, Tianhui [1 ]
Zhai, Hongbin [2 ]
Wang, Hongtao [1 ]
机构：
[1] Fuyang Normal Univ, Sch Chem & Mat Engn, Anhui Prov Key Lab Degradat & Monitoring Pollut E, Fuyang 236037, Peoples R China
[2] Peking Univ, Shenzhen Grad Sch, Sch Chem Biol & Biotechnol, Guangdong Prov Key Lab Nanomicro Mat Res, Shenzhen 518055, Peoples R China
来源：
MATERIALS | 2019年 / 12卷 / 17期
基金：
中国国家自然科学基金;
关键词：
composite; fuel cell; BaCeO3; conductivity; electrolyte; CERAMIC FUEL-CELLS; HIGH-PERFORMANCE; DOPED CERIA; IONIC-CONDUCTIVITY; PROTON CONDUCTION; ANODE; BACEO3; CO; DURABILITY; STABILITY;
D O I：
10.3390/ma12172752
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, BaCe0.9Er0.1O3-alpha was synthesized by a microemulsion method. Then, a BaCe0.9Er0.1O3-alpha-K2SO4-BaSO4 composite electrolyte was obtained by compounding it with a K2SO4-Li2SO4 solid solution. BaCe0.9Er0.1O3-alpha and BaCe0.9Er0.1O3-alpha-K2SO4-BaSO4 were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman spectrometry. AC impedance spectroscopy was measured in a nitrogen atmosphere at 400-700 degrees C. The log sigma similar to log (p(O2)) curves and fuel cell performances of BaCe0.9Er0.1O3-alpha and BaCe0.9Er0.1O3-alpha-K2SO4-BaSO4 were tested at 700 degrees C. The maximum output power density of BaCe0.9Er0.1O3-alpha-K2SO4-BaSO4 was 115.9 mWcm(-2) at 700 degrees C, which is ten times higher than that of BaCe0.9Er0.1O3-alpha.
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页数：9
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