Mechanism of the oscillatory reduction of peroxodisulfate on gold(110) at electrode potentials positive to the point of zero charge

被引:12
作者
Treindl, L [1 ]
Doblhofer, K [1 ]
Krischer, K [1 ]
Samec, Z [1 ]
机构
[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany
关键词
D O I
10.1016/S0013-4686(99)00124-3
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The oscillatory reduction of S2O82- ions on the Au(110) electrode in dilute solutions of NaF at potentials positive to the known value of the potential of zero charge (PZC) has been studied. Experimental results based on cyclic voltammetry with rotating disk electrodes and potentiostatic current transients indicate that in the course of S2O82- reduction the surface state of the electrode is modified. It is proposed that the point of zero charge shifts to a more positive potential, and that the oscillatory S2O82- reduction is governed by the Frumkin effect. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3963 / 3967
页数:5
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