Carbon-supported Pt-RuS2 nanocomposite as hydrogen oxidation reaction catalysts for fuel cells

被引：0
|
作者：
In-Su Park
Ok-Hee Kim
Jung Won Kim
Yong-Hun Cho
Yung-Eun Sung
机构：
[1] Korea Institute of Geoscience and Mineral Resources,Mineral Resources Research Division
[2] Republic of Korea Naval Academy,Department of Science
[3] Kangwon National University,Department of Chemical Engineering
[4] Institute for Basic Science (IBS),Center for Nanoparticle Research
[5] Seoul National University (SNU),School of Chemical and Biological Engineering
来源：
Journal of Applied Electrochemistry | 2016年 / 46卷
关键词：
Nanocomposite; Electrocatalyst; Hydrogen oxidation reaction; Membrane electrode assembly; Fuel cells;
D O I：
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中图分类号：
学科分类号：
摘要：
A carbon-supported Pt-RuS2 nanocomposite (Pt-RuS2/C) that contained extremely small amount of Pt compared with commercial Pt/C was prepared by the deposition of Pt nanoparticles (NPs) onto carbon-supported RuS2 NPs. This Pt-RuS2/C NP was demonstrated to be an electrocatalyst for hydrogen oxidation reaction catalyst for polymer electrolyte membrane fuel cells using membrane electrode assembly in a single-cell performance test and CO-stripping measurements. The results of structural analysis on prepared nanocomposite showed highly dispersed Pt (ca. 2.5 nm in diameter) and RuS2 (ca. 5.5 nm in diameter) NPs on carbon particles. Pt existed in an unalloyed phase in Pt-RuS2/C, and RuS2 NPs were in physical contact with Pt NPs. Although the amount of Pt in the Pt-RuS2/C NP was only 21.7 % of commercial Pt/C, the Pt-RuS2/C exhibited comparable single-cell performance to commercial Pt/C as an anode electrocatalyst, owing to the promoting effect of RuS2 on the reactivity of Pt.
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页码：77 / 83
页数：6
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