Photo-electrochemical behaviour of glassy carbon

被引：4

作者：

Antoine, O ^{[1
]}

Augustynski, J ^{[1
]}

机构：

[1] Univ Geneva, Dept Chim Minerale Analyt & Appl, CH-1211 Geneva 4, Switzerland

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2001年 / 3卷 / 04期

关键词：

photo-electrochemistry; glassy carbon; electron donor;

D O I：

10.1016/S1388-2481(01)00139-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The photo-electrochemical behaviour of glassy carbon was investigated in the range of low anodic potentials, both in a supporting electrolyte alone and in the presence of electron donors (Fe2+, Ru(NH3)(6)(2+)). The amount of the observed photo-current and the shape of the spectral photo-response are shown to be strongly affected by the nature of the effective electron donor present in the solution. The largest photo-currents, exceeding by far the "dark" currents were observed for the oxidation of Fe2+ ions, known to be catalysed by the C=O groups on the surface of glassy carbon. Only marginal photo-currents, associated with the oxidation of functional groups on the surface of glassy carbon, were recorded in the supporting electrolyte. (C) 2001 Published by Elsevier Science B.V.

引用

页码：195 / 198

页数：4

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