A mixed proton, oxygen ion, and electron conducting cathode for SOFCs based on oxide proton conductors

被引：177

作者：

Yang, Lei ^{[1
]}

Liu, Ze ^{[1
]}

Wang, Shizhong ^{[1
]}

Choi, YongMan ^{[1
]}

Zuo, Chendong ^{[1
]}

Liu, Meilin ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Ctr Innovat Fuel Cell & Battery Technol, Atlanta, GA 30332 USA

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 02期

关键词：

BZCY; Composite cathode; Electrochemical performance; Stability; FUEL-CELL; REDUCTION; BAZRO3;

D O I：

10.1016/j.jpowsour.2009.07.057

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：

A composite cathode, consisting of Ba(Zr0.1Ce0.7Y0.2)O3-delta (BZCY) and La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF), has shown high catalytic activity toward oxygen reduction, demonstrating a peak power density of 855 mW cm(-2) at 750 degrees C. The chemical compatibility between BZCY and LSCF is excellent since there was no evidence of chemical reaction between the two after being. red at 1100 degrees C for 10 h. The stability of the composite cathode is further shown in single cells operated at 750 and 600 degrees C for 100 h without observable degradation in performance. (C) 2009 Elsevier B. V. All rights reserved.

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页码：471 / 474

页数：4

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