Abnormally fast mobility of CO at electrochemical interfaces

被引:6
作者
Gutierrez, AC [1 ]
Pinheiro, ALN [1 ]
Leiva, E [1 ]
González, ER [1 ]
Iwasita, T [1 ]
机构
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560590 Sao Carlos, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
carbon monoxide; electrochemical interface; mass-transfer; electrode capacitance; diffusion;
D O I
10.1016/S1388-2481(03)00116-4
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A very fast rate of CO transport at the Pt/electrolyte interface is reported. The mass transport was monitored by following the change of the electrode capacitance caused by H-ad displacement during carbon monoxide adsorption at potentials in the hydrogen adsorption region. A diffusion parameter was calculated assuming the validity of Fick's law. No dependence was found on the surface structure. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:539 / 543
页数:5
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