Suppression of CO Adsorption on PtRu/C and Pt/C with RuO2 Nanosheets

被引：13
|
作者：
Takimoto, Daisuke [1 ]
Ohnishi, Tomohiro [1 ]
Sugimoto, Wataru [1 ,2 ]
机构：
[1] Shinshu Univ, Fac Text Sci & Technol, Mat & Chem Engn, Ueda, Nagano 3868567, Japan
[2] Shinshu Univ, Interdisciplinary Cluster Cutting Edge Res, Ctr Energy & Environm Sci, Ueda, Nagano 3868567, Japan
来源：
ECS ELECTROCHEMISTRY LETTERS | 2015年 / 4卷 / 05期
关键词：
TOLERANT ANODE CATALYSTS; MEMBRANE FUEL-CELLS; CARBON-MONOXIDE; TEMPERATURE-DEPENDENCE; TERNARY CATALYSTS; OXIDE; ELECTROCATALYSTS; ELECTROOXIDATION; ELECTRODES; OXIDATION;
D O I：
10.1149/2.0011505eel
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
RuO2 nanosheets were studied as a promotor for the hydrogen oxidation reaction in the presence of 300 ppm CO/H-2. The hydrogen oxidation current in 300 ppm CO/H-2 for RuO2 nanosheet modified PtRu/C catalyst (RuO2:Pt:Ru = 0.5:1:1 (molar ratio)) exhibited higher CO tolerance than Pt1Ru1/C and Pt2Ru3/C. Based on hydrodynamic voltammetry, chronoamperometry and CO stripping voltammetry, the addition of RuO2 nanosheets is suggested to suppress CO adsorption on the catalyst surface, resulting in an improvement in CO tolerance. (C) The Author(s) 2015. Published by ECS.
引用
收藏
页码：F35 / F37
页数：3
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