Electrochemical adsorption of rhodium on platinum

被引:24
作者
Bakos, I [1 ]
Szabó, S [1 ]
机构
[1] Hungarian Acad Sci, Chem Res Ctr, Inst Chem, H-1525 Budapest, Hungary
来源
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2003年 / 547卷 / 01期
基金
匈牙利科学研究基金会;
关键词
rhodium; platinum; adsorption; underpotential deposition;
D O I
10.1016/S0022-0728(03)00173-6
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Electrosorption of rhodium on a polycrystalline platinum surface has been studied. It has been found that a complete Rh-coverage can be obtained by spontaneous adsorption via the ionization of preadsorbed hydrogen. Underpotential deposition of rhodium has been observed both in 0.5 M H2SO4 and 0.2 M HCl supporting electrolytes. The value of the underpotential shift was found to be about 100-120 mV. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:103 / 107
页数:5
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