A probe beam deflection study of the hypophosphite oxidation on a nickel electrode

被引：28

作者：

Abrantes, LM ^{[1
]}

Oliveira, MC ^{[1
]}

Vieil, E ^{[1
]}

机构：

[1] CEA,DEPT RECH FONDAMENTALE MAT CONDENSEE,SERV ETUD SYST & ARCHITECTURES MOLEC,F-38054 GRENOBLE 9,FRANCE

来源：

ELECTROCHIMICA ACTA | 1996年 / 41卷 / 09期

关键词：

probe beam deflection; hypophosphite; nickel; electroless; electrocatalysis;

D O I：

10.1016/0013-4686(95)00403-3

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The Probe Beam Deflection (PBD) together with cyclic voltammetry and chronoamperometry have been used to study in-situ an electrocatalytic reaction: the hypophosphite ion electro-oxidation on the nickel electrode in the alkaline medium. The results are discussed in terms of a previously proposed mechanism and are consistent with the involvement of a non faradaic rate determining reaction preceding the oxidation step. The high sensitivity of the technique allows an accurate evaluation of the catalytic activity of slightly modified surfaces. Despite the non catalytic activity exhibited by the beta-Ni(OH)(2) on the cyclic voltammetry, the PBD reveals its capability to oxidize the hypophosphite ion. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：1515 / 1524

页数：10

共 33 条

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