Voltammetric characteristics of graphite electrodes modified with microdroplets of n-butylferrocene

被引:55
作者
Wadhawan, JD [1 ]
Evans, RG [1 ]
Compton, RG [1 ]
机构
[1] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
关键词
electroactive oils; microdroplets; voltammetry; basal plane pyrolytic graphite; n-butylferrocene; redox liquid;
D O I
10.1016/S0022-0728(02)01072-0
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We report the voltammetry of basal plane pyrolytic graphite electrodes partially covered with immobilised microdroplets of n-butylferrocene and immersed in various aqueous electrolyte solutions. Oxidation of the redox-active oil droplets to form the n-butylferrocinium cation takes place with the expulsion of the cation from the oil phase. The dissolution process is accompanied by the formation of ion pairs between the n-butylferrocinium cation and the counter anion in the aqueous solution; adsorption of the parent compound on the solid electrode surface is also observed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:71 / 84
页数:14
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