ELECTROCATALYTIC OXIDATION OF AS(III) .2. KINETIC-STUDIES AT PT ELECTRODES

被引：12

作者：

CABELKA, TD

AUSTIN, DS

JOHNSON, DC

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011

[2] IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1985年 / 132卷 / 02期

关键词：

ARSENIC COMPOUNDS - Oxidation - CATALYSIS - Electrochemistry - CHEMICAL REACTIONS - Reaction Kinetics;

D O I：

10.1149/1.2113838

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The empirical rate law for the electrocatalyzed oxidation of As(III) at a Pt rotating disc electrode in acidic media was determined from potentiostatic measurements. It is PtOH and not PtO that is the active agent for oxygen-atom transfer in the electrocatalytic mechanism. It is concluded that the generation of OH at a highly oxidized Pt surface occurs at a rate independent of applied potential.

引用

页码：359 / 366

页数：8

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