LIMIT-CYCLE IN ELECTROCHEMICAL OSCILLATION - POTENTIAL OSCILLATION DURING ANODIC-OXIDATION OF H-2

被引:15
|
作者
KODERA, T [1 ]
YAMAZAKI, T [1 ]
MASUDA, M [1 ]
OHNISHI, R [1 ]
机构
[1] HOKKAIDO UNIV,CATALYSIS RES INST,SAPPORO,HOKKAIDO 060,JAPAN
关键词
ELECTROCHEMISTRY - ELECTRODES - Platinum - SILVER AND ALLOYS - Dissolution;
D O I
10.1016/0013-4686(88)80172-5
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
In a previous report, the deposition and dissolution processes of Ag metal were directly observed by measuring the rest potential of a Ag monitor electrode during potential oscillation. From this result, it was clarified that the coupling of H//2 oxidation with Ag deposition-dissolution results in potential oscillation. A limit cycle was obtained by simulating kinetic equations describing the potential oscillation due to coupling of the anodic oxidation of H//2 with Ag deposition and dissolution. Attractive interaction between Ag adatoms on Pt test electrodes was found to be essential for producing the limit cycle.
引用
收藏
页码:537 / 540
页数:4
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