Electrode Properties of Tetrahedral Amorphous Carbon

被引:0
作者
Yu. E. Evstefeeva
Yu. V. Pleskov
A. M. Kutsay
I. Bello
机构
[1] Russian Academy of Sciences,Frumkin Institute of Electrochemistry
[2] City University of Hong Kong,undefined
来源
Russian Journal of Electrochemistry | 2005年 / 41卷
关键词
tetrahedral amorphous carbon; thin-film electrode; implantation with C; ions; differential capacitance; electrochemical kinetics;
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学科分类号
摘要
Impedance spectra in a 2.5 M H2SO4 solution and kinetic characteristics of reactions in the Fe(CN)63−/4− redox system are measured for thin-film electrodes of tetrahedral amorphous carbon (ta-C). After an anneal in a vacuum at 700 to 900°C or implantation of C+ ions (1015 to 1017 ion/cm2), ta-C films acquire electrochemical activity, which can be explained by an increased content of sp2 carbon.
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页码:772 / 777
页数:5
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