Bending of polyelectrolyte membrane-platinum composite by electric stimuli III: self-oscillation

被引：12

作者：

Asaka, K ^{[1
]}

Oguro, K ^{[1
]}

机构：

[1] AIST, Osaka Natl Res Inst, Ikeda, Osaka 5638577, Japan

来源：

ELECTROCHIMICA ACTA | 2000年 / 45卷 / 27期

关键词：

bending; chemical plating; oscillation; oxidation; solid polymer electrolyte;

D O I：

10.1016/S0013-4686(00)00507-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Oscillatory bending responses of a solid polymer electrolyte membrane (SPM)-platinum (Pt) composite synchronized with anodic potential oscillations under galvanostatic conditions were determined. The oscillations took place when the anodic oxidations of formaldehyde or sodium formate in aqueous :sulfuric acid solutions were carried out on a plated Pt electrode. The frequency and the waveform of the: oscillations depended on the concentration of the organic compounds and the direct current applied. The phenomena are discussed in the light of a previously published model in which we proposed that the interfacial stress between the membrane and the electrolyte causes the bending response. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：4517 / 4523

页数：7

共 13 条

[1] OBSERVATION OF SEVERAL DIFFERENT TEMPORAL PATTERNS IN THE OXIDATION OF FORMIC-ACID AT A ROTATING PLATINUM-DISK ELECTRODE IN AN ACIDIC MEDIUM [J].