RADIOTRACER STUDY OF ADSORPTION PHENOMENA AT NICKEL ELECTRODES IN ACIDIC MEDIUM

被引：12

作者：

HORANYI, G

RIZMAYER, EM

机构：

[1] Hungarian Acad of Sciences, Central, Research Inst for Chemistry,, Budapest, Hung, Hungarian Acad of Sciences, Central Research Inst for Chemistry, Budapest, Hung

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1984年 / 180卷 / 1-2期

关键词：

ELECTRODES; ELECTROCHEMICAL - Nickel - HYDROCHLORIC ACID - Adsorption - PHOSPHORIC ACID - Adsorption - RADIOACTIVE MATERIALS - Tracers - SULFURIC ACID - Adsorption;

D O I：

10.1016/0368-1874(84)83573-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A radiotracer method was used for the study of the adsorption phenomena on 'black' nickel electrodes formed by electrodeposition of nickel ('nickelized' nickel electrode). Adsorption studies were carried out with labelled HCl, sulfuric acid, phosphoric acid, thiourea, phenylacetic and acetic acids in 0. 1 mol dm** minus **3 HClO//4 supporting electrolyte. The potential dependence of the adsorption of these species was determined in the potential range minus 200 to plus 200 mv (on the RHE scale). It was found that a significant potential-dependent adsorption occurs at low concentrations (10** minus **3-10** minus **4 mol dm** minus **3) of the species studied in the course of the anodic dissolution of the electrode. It was observed that the polarization behavior of the electrode is influenced by the adsorption of the species studied.

引用

页码：97 / 108

页数：12

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