Composite anodes with Ni impregnated LST-SSZ for direct methane solid oxide fuel cells

被引：0

作者：

Liu, Ya-Di ^{[1
]}

Yuan, Chun ^{[1
]}

Zhou, Yu-Cun ^{[1
]}

Zou, Jie ^{[1
]}

Xin, Xian-Shuang ^{[1
]}

Wang, Shao-Rong ^{[1
]}

机构：

[1] Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai

来源：

Wuji Cailiao Xuebao/Journal of Inorganic Materials | 2014年 / 29卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Composite anode materials; Impregnation; Methane; Polarization resistance;

D O I：

10.15541/jim20140083

中图分类号：

学科分类号：

摘要：

Solid Oxide Fuel Cells (SOFCs) is one of the most attractive energy conversion devices because of their high efficiency, low pollution, and fuel flexibility. La0.2Sr0.8TiO3 (LST) anode material shows its potential utilization in direct oxidation of methane fuel without carbon formation. In this paper, LST powders were synthesized by traditional solid-state method, and then mixed with scandia-stabilized zirconia (SSZ) in mass ratio of 5: 5 to prepare the composite anode materials. Symmetrical cells with LST-SSZ composite anode were fabricated and measured. Their polarization resistances in hydrogen at 700℃, 750℃ and 800℃ were 5.3, 3.0 and 2.0 Ω·cm2, respectively. Considering the insufficient conductivity of LST, 10wt%Ni was impregnated into the composite anode to improve the anode performance. The polarization resistance of the symmetrical cell with 10wt% Ni impregnation load is obviously reduced. The maximum power density of a cathode supported single cell with 10wt%Ni-LST-SSZ composite anode are 225 mW/cm2 and 175 mW/cm2 in hydrogen and in methane at 750℃, respectively, and the single cell shows its stability running in methane fuels. ©, 2014, Science Press. All right reserved.

引用

页码：1121 / 1126

页数：5

共 18 条

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