Examination of the electrochemical reactivity of screen printed carbon electrode treated by radio-frequency argon plasma

被引：21

作者：

Ghamouss, F.

Tessier, P.-Y.

Djouadi, M. A.

Besland, M-P.

Boujtita, M.

机构：

[1] Univ Nantes, CNRS, UMR 6006, Fac Sci & Tech LAIEM, F-44322 Nantes, France

[2] Univ Nantes, CNRS, Inst Mat Jean Rouxel, CNRS UMR 6502 Fac Sci & Tech, F-44322 Nantes, France

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 07期

关键词：

screen printed carbon electrode (SPCE); argon plasma treatment; cyclic voltammetry; microelectrodes arrays; electrochemical reactivity;

D O I：

10.1016/j.elecom.2007.04.009

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The surface of screen printed carbon electrode (SPCE) with partially blocked surface was treated by argon plasma in order to improve their electrochemical performances. The argon plasma was generated by a radio-frequency electrical discharge at low pressure. Study of the electrode surface by scanning electronic microscopy (SEM) has revealed a significant change of the morphology of the SPCE surface after plasma pre-treatment. The electrochemical reactivity of the SPCEs was characterized using cyclic voltammetry. A drastic enhancement of the SPCEs electrochemical reactivity was highlighted after plasma pre-treatment. The effect of biasing the SPCE surface during the plasma treatment has been investigated and showed that depending on the nature of plasma treatment, the same electrode could show a radial or planar diffusion. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1798 / 1804

页数：7

共 15 条

[1] Direct electrochemistry of cytochrome c at plain and membrane modified screen-printed carbon electrodes [J].