Symmetrical solid oxide fuel cells fabricated by phase inversion tape casting with impregnated SrFe0.75MO0.25O3-δ (SFMO) electrodes

被引：40
作者：
Gao, Jun [1 ,2 ]
Meng, Xie [1 ]
Luo, Ting [1 ]
Wu, Hao [1 ]
Zhan, Zhongliang [1 ,2 ]
机构：
[1] SICCAS, CAS Key Lab Mat Energy Convers, 1295 Dingxi Rd, Shanghai 200050, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 29期
基金：
中国国家自然科学基金;
关键词：
Phase inversion; Solid oxide fuel cells; Strontium and magnesium doped; lanthanum gallate; Molybdenum doped strontium ferrite; Nanostructure impregnation; CATHODES;
D O I：
10.1016/j.ijhydene.2017.03.205
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：
The new phase inversion tape casting method is explored to fabricate the "porous vertical bar dense vertical bar porous" La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) with aligned straight pores. Symmetrical fuel cells are obtained by impregnating nano-scale SrFe0.75MO0.O-25(3-delta) (SFMO) catalysts into both porous LSGM scaffolds. Operation on hydrogen and air oxidants produces 401, 521, 602 and 703 mW cm(-2) at 650, 700, 750 and 800 degrees C, respectively. Impedance measurements show that the overall interfacial polarization resistances are 0.17, 0.20, 0.25 and 0.36 Omega cm(2) for such symmetrical fuel cells at 800, 750, 700 and 650 degrees C, respectively. Impedance analysis under varied oxygen partial pressures indicates that the symmetrical SFMO-LSGM electrodes exhibit lower polarization resistances for phase-inversion casted LSGM scaffolds than for the traditionally casted LSGM scaffolds. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：18499 / 18503
页数：5
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