Mechanism of electrochemical oscillations in the system Fe/H2SO4(aq), K2Cr2O7(aq)/Pt

被引：12

作者：

Bourceanu, G ^{[1
]}

Melnig, V ^{[1
]}

Vatamanu, J ^{[1
]}

Vasiliu, R ^{[1
]}

机构：

[1] Al I Cuza Univ, Fac Chem, Iasi 6600, Romania

来源：

ELECTROCHIMICA ACTA | 1998年 / 43卷 / 09期

关键词：

iron dissolution; temporal potential oscillations; j-E potentiostatic characteristic; electrode-electrolyte interface;

D O I：

10.1016/S0013-4686(97)00140-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Taking into consideration the possible reactions in the volume of a solution, as well as on the surface of a working electrode, a mechanism responsible for the appearance of electrochemical oscillations has been proposed. It was found experimentally that for the system under study the species H+, HCrO4- and (FeCrO4+)-Cr-III-O-VI ions have a controlling role for the appearance and maintenance of oscillations. Based on the electrochemical reactions found experimentally, a mathematical model able to describe the behavior of the real electrochemical system has been elaborated. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1031 / 1043

页数：13