Observation of synchronized spatiotemporal reaction waves in coupled electrochemical oscillations of an NDR type

被引：23

作者：

Fukushima, S ^{[1
]}

Nakanishi, S ^{[1
]}

Fukami, K ^{[1
]}

Sakai, S ^{[1
]}

Nagai, T ^{[1
]}

Tada, T ^{[1
]}

Nakato, Y ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Div Chem, Toyonaka, Osaka 5608531, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2005年 / 7卷 / 04期

基金：

日本科学技术振兴机构;

关键词：

electrochemical oscillation; coupling phenomenon; spatiotemporal pattern; hydrogen peroxide; platinum electrode;

D O I：

10.1016/j.elecom.2005.02.016

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The coupling of spatiotemporal reaction waves was investigated by the use of current oscillations of an NDR type, appearing in H2O2 reduction on platinum (Pt) electrodes. For two Pt-ring working electrodes located side by side, the oscillatory coupling gave rise to various synchronized waves, such as spatially homogeneous waves (HW's) in an in-phase mode, HW's in an anti-phase mode, and a standing wave or a traveling wave synchronized with a HW, depending on the applied potential and the relative position of the reference electrode. The results are explained in terms of a combination of positive local coupling and negative global coupling effects. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：411 / 415

页数：5

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