Adsorption of cinchonidine on platinum:: an electrochemical study

被引:42
作者
Bakos, I
Szabó, S
Bartók, M
Kálmán, E
机构
[1] Hungarian Acad Sci, Chem Res Ctr, Inst Chem, H-1525 Budapest, Hungary
[2] Hungarian Acad Sci, Organ Catalysis Res Grp, H-6720 Szeged, Hungary
[3] Univ Szeged, Dept Organ Chem, H-6720 Szeged, Hungary
来源
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2002年 / 532卷 / 1-2期
基金
匈牙利科学研究基金会;
关键词
platinum; cinchonidine; adsorption; chiral modifier; irreversible adsorption;
D O I
10.1016/S0022-0728(02)00938-5
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The adsorption of cinchonidine (CD) on polycrystalline platinum surfaces in 0.5 mol dm(-3) H2SO4 has been investigated. It has been found that adsorption is irreversible, desorption takes place at relatively high potentials simultaneously with the oxidation of CD molecules. According to our results CD covers only a part of the Pt surface and maximal coverage is influenced by the surface structure. Some assumptions for the site requirement of an adsorbed CD molecule have also been made. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:113 / 119
页数:7
相关论文
共 28 条