Voltammetric analysis of the co-adsorption of cyanide and carbon monoxide on a Pt(111) surface

被引:16
作者
Huerta, F
Morallon, E
Vázquez, JL
机构
[1] Univ Alicante, Dept Quim Fis, E-03080 Alicante, Spain
[2] Univ Politecn Valencia, EPS Alcoy, Dept Ingn Text & Papelera, E-03801 Alcoy, Spain
关键词
cyclic voltammetry; adsorption; cyanide; carbon monoxide; Pt(111) electrode;
D O I
10.1016/S1388-2481(02)00271-0
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Carbon monoxide has been adsorbed at controlled potential on a Pt(111) electrode, which was pre-covered with cyanide up to saturation. From the results obtained, it has been deduced that CO occupies platinum sites between CN molecules with no distortion of the pre-adsorbed cyanide layer. The anodic stripping of CO does not induce modifications of the CN adlayer either. These observations allow the estimation of theta(CO) rather accurately by means of the coulometric method. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:251 / 254
页数:4
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