Pervoskite-type BaCo0.7Fe0.2Ta0.1O3-δ cathode for proton conducting IT-SOFC

被引：15
作者：
Xie, Kui [1 ,2 ]
Zhou, Jianer [1 ]
Meng, Guangyao [2 ]
机构：
[1] Jingdezhen Ceram Inst, Natl Engn Res Ctr Domest & Bldg Ceram, Jingdezhen 333403, Jiangxi, Peoples R China
[2] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 506卷 / 01期
关键词：
SOFC; Cathode; BaCoO3; Pervoskite; Stability; INTERMEDIATE-TEMPERATURE; OXYGEN PERMEATION; OXIDE; STABILITY; PR; LA; GD; SM; LN; ND;
D O I：
10.1016/j.jallcom.2010.06.159
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：
This paper presents Pervoskite-type BaCo0.7Ta0.1Fe0.2O3-delta (BCTF) cathode for intermediate temperature proton conducting solid oxide fuel cells (SOFCs). BCTF with cubic phase shows excellent structural stability and adequate chemical stability against CO2/H2O in contrast to BaCo0.8Fe0.2O3-delta. Conductivity of BCTF reaches above 10 S cm(-1) in air at intermediate temperatures. Composite cathode polarization resistance (BCTF/BaZr0.1Ce0.7Y0.2O3-delta) in a symmetric cell based on proton conducting BaZr0.1Ce0.7Y0.2O3-delta (BCZY) electrolyte was as low as 0.1 Omega cm(2) at 700 degrees C. The maximum output of anode-supported thin-film SOFC with BCTF/BCZY composite cathode and BCZY electrolyte reaches 255 mW cm(-2) when employing humidified H-2 as fuel and static air as oxidizer. (c) 2010 Elsevier BM. All rights reserved.
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收藏
页码：L8 / L11
页数：4
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