Comparative radiotracer study of the adsorption of Cl-, HSO4-(SO42-) and H2PO4- anions on rhodized electrodes

被引：19

作者：

Horanyi, G ^{[1
]}

Wasberg, M ^{[1
]}

机构：

[1] ABO AKAD UNIV,ANALYT CHEM LAB,FIN-20500 TURKU,FINLAND

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1996年 / 404卷 / 02期

基金：

匈牙利科学研究基金会;

关键词：

rhodized electrodes; anion adsorption; coupled electrochemical and radiotracer technique; acid medium;

D O I：

10.1016/0022-0728(95)04353-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorption of P-32 labelled phosphoric acid, S-35 labelled sulphuric acid and Cl-36 labelled hydrochloric acid from 2 x 10(-2) mol dm(-3) HClO4 supporting electrode was studied at rhodized electrodes (roughness factor values about 150) by a coupled electrochemical and radiotracer technique. A special attempt is made to avoid the problems caused by the reduction of ions. It has been stated that the adsorption behaviour of H2PO4- and HSO4-(SO42-) ions is very similar and the potential dependence of the adsorption can be described by a simple relationship reported previously (G. Horanyi and E.M. Rizmayer, J. Electroanal. Chem., 198 (1986) 379; 201 (1986) 187), while the relationship for Cl- ions can be conceived as composed of at least two simple functions describing the adsorption of HSO4-(SO42-) ions, with two different sets of parameters.

引用

页码：291 / 298

页数：8

共 19 条

[1] ANION SURFACE INTERACTIONS .1. PERCHLORATE DECOMPOSITION AND SULFATE ADSORPTION HYSTERESIS STUDIED BY VOLTAMMETRY [J].