Oxidation process induced by 2-mercaptopyrimidine at a mercury electrode

被引：1
|
作者：
Calzón, JAG [1 ]
Alvarez, JLM [1 ]
Fonseca, JML [1 ]
机构：
[1] Univ Oviedo, Dept Quim Fis & Analit, E-33071 Oviedo, Spain
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2005年 / 290卷 / 02期
关键词：
2-mercaptopyrimidine; mercury electrode; voltammetric techniques; adsorption;
D O I：
10.1016/j.jcis.2005.04.070
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The oxidation process induced by 2-mercaptopyrimidine (RSH) at a hanging mercury drop electrode was studied in aqueous media by normal and cyclic voltammetry. The results indicate the formation of a weakly adsorbed HgSR complex according to the reaction Hg + RSH -> HgSR + e(-) + H+. When the surface excess of HgSR is high, a two-dimensional condensation takes place if the potential is positive enough, as proved by phase-sensitive ac and cyclic voltammetry. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码：498 / 504
页数：7
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