Effect of Humidity on Carbon Monoxide Desorption Kinetics

被引：1

作者：

Dundar, F. ^{[1
,2
]}

Pitois, A. ^{[1
]}

Pilenga, A. ^{[1
]}

Tsotridis, G. ^{[1
]}

机构：

[1] European Commiss, Joint Res Ctr, Inst Energy & Transport, NL-1755 ZG Petten, Netherlands

[2] Meliksah Univ, Dept Mech Engn, TR-38280 Kayseri, Turkey

来源：

JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY | 2014年 / 11卷 / 04期

关键词：

CO poisoning; desorption; fuel cell; SSITKA; kinetics; humidity; ROTATING-DISK ELECTRODE; WATER-GAS SHIFT; CO DESORPTION; PT-RU; FUEL-CELLS; ELECTROOXIDATION; CATALYSTS; PLATINUM; H-2; CHEMISORPTION;

D O I：

10.1115/1.4027185

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The kinetics of carbon monoxide desorption on a platinum catalyst under humidified conditions were investigated with the steady state isotropic transient kinetic analysis (SSITKA) method. The effect of the humidity level on desorption kinetics was quantified. The carbon monoxide (CO) desorption kinetic constant was calculated regardless of the gas flow rate. The kinetic constant dropped up to 58% with the increasing relative humidity. The negative effect of humidity in terms of CO poisoning for PEM fuel cells was determined.

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页数：5

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