The influence of surface preparation on the electrochemistry of boron doped diamond: A study of the reduction of 1,4-benzoquinone in acetonitrile

被引:18
作者
Pastor-Moreno, G [1 ]
Riley, DJ [1 ]
机构
[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
基金
英国工程与自然科学研究理事会;
关键词
diamond; cyclic voltammetry; benzoquinone; surface modification;
D O I
10.1016/S1388-2481(02)00255-2
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The reduction, at boron doped diamond electrodes, of 1,4-benzoquinone dissolved in acetonitrile is investigated. It is shown that the mechanism of reduction is dependent on electrode pre-treatment. Whilst the response at an oxygenated diamond electrode surface resembles that at platinum and carbon electrodes. the i-E curve at a hydrogenated diamond surface is indicative of protonation of intermediates. The cyclic voltammograms obtained suggest that the sub-surface hydrogen present in the hydrogenated diamond lattice is able to participate in electrochemical processes. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:218 / 221
页数:4
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