期刊
JOURNAL OF POWER SOURCES
卷 247, 期 -, 页码 360-364出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.08.102
关键词
Direct methanol fuel cell; Carbon monoxide tolerance; Platinum ruthenium alloy; Thiol-functionalized carbon nanotubes; Catalytic activity
资金
- China National 973 Program [2012CB215500, 2012CB720300]
- NSFC [20936008, 51072239, 21276291, 21176327]
PtRu nanoparticles (NPs) with enhanced methanol oxidation are prepared by a simple chemical reduction method using the thiol-functionalized carbon nanotubes (SH-CNTs) as support. Electrochemical measurements confirmed that the higher methanol oxidation is due to the excellent CO tolerance of PtRu NPs. From the comparison with the PtRu/COOH-CNTs catalyst, the experiment results demonstrate that excellent CO tolerance is originated from the strong interaction between Pt atoms and the -SH groups, which weakens CO adsorption and leads a higher methanol oxidation activity. (C) 2013 Published by Elsevier B.V.
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