Sulfur-tolerant materials for the hydrogen sulfide SOFC

被引：52

作者：

Aguilar, L ^{[1
]}

Zha, SW

Li, SW

Winnick, J

Liu, M

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 10期

关键词：

D O I：

10.1149/1.1788613

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This study examined sulfur tolerant materials for solid oxide fuel cells (SOFCs) operating on H2S and H2S containing fuels, focusing on the stability and electrochemical performance of perovskite-type materials in a H2S atmosphere under SOFC operating conditions (P = 1 atm, T > 800 degrees C). Preliminary results indicate anodes of the general form LaxSryVO3-delta are stable and active toward the electrochemical oxidation of H2S. In particular, an SOFC using La0.7Sr0.3VO3 as the anode has shown good performance at H2S levels of 10%, over 5000 times greater than the H2S tolerance level of contemporary Ni-based systems. The results are promising due to the drastic improvement in sulfur tolerance compared to the current generation of SOFC anode materials. (C) 2004 The Electrochemical Society.

引用

页码：A324 / A326

页数：3

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