A strategy for achieving high performance with SOFC ceramic anodes

被引：109
作者：
Gross, M. D. [1 ]
Vohs, J. M. [1 ]
Gorte, R. J. [1 ]
机构：
[1] Univ Penn, Dept Chem & Biomol Engn, Philadelphia, PA 19104 USA
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2007年 / 10卷 / 04期
关键词：
D O I：
10.1149/1.2432942
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A proposal that high solid oxide fuel cell (SOFC) anode performance can be achieved by using a very thin, catalytically active functional layer, with a noncatalytic conduction layer, has been tested. An anode impedance of 0.26 Omega cm(2) was obtained at 973 K in humidified H-2 using a Ag-paste conduction layer and a 12 mu m thick functional layer made from 1 wt% Pd and 40 wt% ceria in yttria-stabilized zirconia. Replacing the Ag paste with a 100 mu m layer of porous La0.3Sr0.7TiO3 (LST) had minimal effect on cell performance. The anode concept is flexible and should allow various materials to be used in the functional and the current-collector layers. (c) 2007 The Electrochemical Society.
引用
收藏
页码：B65 / B69
页数：5
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