Investigation of samarium and neodymium co-doped BaCeO3 electrolyte for proton-conducting solid oxide fuel cells

被引：0
|
作者：
Cheng, Jihai [1 ]
Liang, Hao [1 ]
Zhu, Xuhang [1 ]
机构：
[1] Hefei Univ, Sch Energy Mat & Chem Engn, Hefei 230601, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2024年 / 856卷
关键词：
Fuel cells; Solid electrolyte; Proton conductors; Electrochemical impedance spectroscopy; Electrical conductivity; IONIC-CONDUCTIVITY; ELECTRICAL-CONDUCTIVITY; SINTERING BEHAVIOR; CHEMICAL-STABILITY; BACE0.8SM0.2O3-DELTA; MEMBRANE;
D O I：
10.1016/j.cplett.2024.141650
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：
BaCe0.8Sm0.2-xNdxO3-delta (x = 0, 0.05, 0.1, 0.15) powder was prepared using the glycine-nitrate combustion method, its crystal structure, microscopic morphology and electrochemical properties were investigated. X-ray diffraction analysis showed that the BaCe0.8Sm0.2-xNdxO3-delta powder with orthorhombic perovskite structure could be obtained after calcined at 1150 degrees C. Scanning electron microscopy showed that BaCe0.8Sm0.2-xNdxO3-delta sintered samples exhibited a dense structure. Electrochemical impedance tests showed that the substitution of Nd3+ improved the electrical conductivity of the BaCeO3-based electrolyte materials. The proton conductivity of BaCe0.8Sm0.15Nd0.05O3-delta samples reaches a maximum value of 0.035 S cm(-1) in a wet air environment at 700 degrees C.
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页数：7
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