Nonlinear phenomena in the electrochemical oxidation of sulfide

被引：21
|
作者：
Feng, JM
Gao, QY [1 ]
Xu, LQ
Wang, JC
机构：
[1] China Univ Min & Technol, Coll Chem Engn, Xuzhou 221008, Jiangsu Prov, Peoples R China
[2] Univ Windsor, Dept Chem & Biochem, Windsor, ON N9P 3P4, Canada
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2005年 / 7卷 / 12期
基金：
加拿大自然科学与工程研究理事会; 中国国家自然科学基金;
关键词：
electrochemical oscillations; nonlinear instabilities; sulfide; platinum electrodes;
D O I：
10.1016/j.elecom.2005.10.004
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electro-oxidation of sulfide on a Pt electrode is found to exhibit both N-NDR (negative differential resistance) and HN-NDR (hidden negative differential resistance) types of oscillations, making it the first system known to be capable of Supporting both types of nonlinear instabilities without changing electrolyte compositions. Six distinct oscillation windows are observed when the external current is adjusted as the control parameter. In addition, temperature also exhibits Subtle influences on the observed reaction behavior, where varying the temperature from 30.0 degrees C results in more complicated oscillatory phenomena. (c) 2005 Elsevier B.V. All rights reserved.
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页码：1471 / 1476
页数：6
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