Modification of palladium-based catalysts by chalcogenes for direct methanol fuel cells

被引：50

作者：

Serov, Alexey Alexandrovich ^{[1
]}

Cho, Sung-Yong ^{[1
]}

Han, Sangil ^{[1
]}

Min, Myoungki ^{[1
]}

Chai, Geunseok ^{[1
]}

Nam, Kie Hyun ^{[1
]}

Kwak, Chan ^{[1
]}

机构：

[1] Samsung SDI, Corp R&D Ctr, Suwon 443731, Gyeonggi Do, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 08期

关键词：

palladium; sulfur; selenium; fuel cells;

D O I：

10.1016/j.elecom.2007.06.005

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Palladium-based catalysts, such as PdSx/C and PdSex/C, have been developed as oxygen reduction catalysts for direct methanol fuel cells. Pd/C catalysts containing chalcogens have been synthesized and tested for oxygen reduction and the results have been analyzed based on changes in the palladium phase. Selenium addition to the catalyst promotes the oxygen reduction due to the modification of the palladium surface. However, sulfur reduces the oxygen reduction activity to a great extent as a result of semi-amorphous palladium phase formation. Both PdSx/C and PdSex/C are highly methanol tolerant. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：2041 / 2044

页数：4

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