La0.6PrSr0.4NiO4-Ce0.8Pr0.2O2 composite cathode for solid oxide fuel cell

被引：4

作者：

Liang, Li ^{[1
]}

Huang, Xiqiang ^{[1
]}

Lu, Zhe ^{[1
]}

Zhang, Yaohui ^{[1
]}

Wei, Bo ^{[1
]}

Zhu, Xingbao ^{[1
]}

Xiao, Juncheng ^{[1
]}

Wu, Yanyan ^{[1
]}

Liu, Zhiguo ^{[1
]}

Su, Wenhui ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Ctr Condensed Matter Sci & Technol, Harbin 150001, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2015年 / 149卷

基金：

中国国家自然科学基金;

关键词：

Composite materials; Oxides; Electrochemical properties; OXYGEN REDUCTION; ELECTRICAL-CONDUCTIVITY; IMPEDANCE SPECTROSCOPY; SOFC; PR; PR2-XSRXNIO4+/-DELTA; ELECTROLYTE; EXPANSION;

D O I：

10.1016/j.matchemphys.2014.11.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

(1-xwt%) La0.6PrSr0.4NiO4 - (xwt%) Ce0.8Pr0.2O2 (x = 0, 10, 20, 30, 40, 50), abbreviated as LPSN-xCPO, were prepared and used as composite cathode for intermediate temperature solid oxide fuel cell (IT-SOFC). XRD result suggested that no chemical reaction occurred between LPSN and CPO after sintering at 1200 degrees C for 4 h. Electrical conductivity of LPSN-xCPO decreased with x. LPSN-40CPO exhibited the best performance on cathode impedance spectra under open-circuit condition. At 700 degrees C, Exchange current density of LPSN-40CPO and LPSN was 50.1 and 15.8 mA cm(-2), respectively, and the polarization resistance R-P of LPSN-40CPO was 0.22 Omega cm(2), which is about one-eighth of that of LPSN. The OCV of the cell with LPSN-40CPO as cathode was about 0.78 V, and the maximum of power density was about 88 mW cm(-2). LPSN-40CPO can be a promise candidate for cathode in IT-SOFC. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：617 / 621

页数：5

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