Voltammetry at micro-mesh electrodes

Journal of the Brazilian Chemical Society

Jay D. Wadhawan¹  Peter J. Welford¹  Kamran Yunus²  Adrian C. Fisher²  Richard G. Compton¹ 

[1] ,Oxford University Physical and Theoretical Chemistry Laboratory South Parks Road,United Kingdom

关键词: micro-mesh electrodes;    microelectrodes;    partially-blocked electrodes;    micro-ring electrodes;    microband electrodes;    voltammetry;   

DOI  :  10.1590/S0103-50532003000400004

来源: SciELO

【 摘 要 】

The voltammetry at three micro-mesh electrodes is explored. It is found that at sufficiently short experimental durations, the micro-mesh working electrode first behaves as an ensemble of microband electrodes, then follows the behaviour anticipated for an array of diffusion-independent micro-ring electrodes of the same perimeter as individual grid-squares within the mesh. During prolonged electrolysis, the micro-mesh electrode follows that behaviour anticipated theoretically for a cubically-packed partially-blocked electrode. Application of the micro-mesh electrode for the electrochemical determination of carbon dioxide in DMSO electrolyte solutions is further illustrated.

【 授权许可】

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