Electrochemical properties of La1.5Pr0.5Ni0.95-xCuxAl0.05O4+δ Ruddlesden-Popper phase as cathodes for intermediate-temperature solid oxide fuel cells

被引：7
|
作者：
Zhou, Qingjun [1 ]
Zhang, Ting [1 ]
Zhao, Chen [1 ]
Qu, Liangwu [1 ]
He, Yong [1 ]
Wei, Tong [1 ]
Tong, Xiaoqiang [1 ]
机构：
[1] Civil Aviat Univ China, Coll Sci, Tianjin 300300, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2020年 / 131卷 / 131期
基金：
中国国家自然科学基金;
关键词：
Solid oxide fuel cells; Cathode; Ruddlesden-Popper; La1.5Pr0.5NiO4+delta; HIGH-PERFORMANCE; OXYGEN REDUCTION; ELECTRODE PROPERTIES; THERMAL-EXPANSION; CRYSTAL-STRUCTURE; PEROVSKITE; LA2NIO4+DELTA; SOFCS; CONDUCTIVITY; STABILITY;
D O I：
10.1016/j.materresbull.2020.110986
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Ruddlesden-Popper materials La1.5Pr0.5Ni0.95-xCuxAl0.05O4+delta (x = 0, 0.1, 0.25, 0.5, 0.75, 0.95), La1.5Pr0.5NiO4+delta, and La1.5Pr0.5NiO4+delta have been synthesized by the sol-gel method as cathode materials on the SDC (Sm0.2Ce0.8O1.9) electrolyte for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The cathode materials sintered at 700 and 800 degrees C for 72 h, also showing good phase stability. The maximum conductivity of this series reached approximately 50 S cm(-1) at 350 degrees C with x = 0.25. The lowest area-specific resistance (ASR) of the cathode measured on the SDC was 0.04 Omega cm(2) at 800 degrees C with x = 0.1. The maximum power density of the SDC-supported single-cell reached 530 mW cm(-2) at 800 degrees C with x = 0.1. Among all of the samples, La1.5Pr0.5Ni0.95-xCuxAl0.05O4+delta exhibited excellent electrochemical performance, making it a promising candidate cathode material for IT-SOFCs.
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页数：9
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