Polyaniline/polysulfone composite film electrode for simultaneous determination of hydroquinone and catechol

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• 作者：Xiaojuan Feng^a ; ^{fengxiaojuan820@yahoo.cn} ; Yanlong Shi^a ; Zhongai Hu^b
• 关键词：PAN/PSF composite film electrode ; Electrocatalytic activity ; Diphenol
• 刊名：Materials Chemistry and Physics
• 出版年：2011
• 出版时间：15 December, 2011
• 年：2011
• 卷：131
• 期：1-2
• 页码：72-76
• 全文大小：1K

文摘

Polyaniline (PAN)/polysulfone (PSF) composite film electrodes were successfully prepared by electropolymerization using cyclic votammetry technique. The composite film electrodes show a great enhancement in electron transfer kinetics, and the separation between oxidation and reduction peaks (¦¤E_p) decreases from 200 to 35 mV for hydroquinone (H₂Q) and from 275 to 42 mV for catechol (CC) at bare Pt and composite film electrodes respectively. In their mixed systems, the redox peak of H₂Q and two pairs of redox peaks of CC on this composite film electrode could be obviously distinguished which indicates the composite film electrodes have excellent electrocatalytic activity and reversibility towards the oxidation of two diphenols (hydroquinone and catechol). The linear relationships between the peak current and concentration are observed for single solute and mixed systems within the certain concentration range, implying that the composite film electrodes have potential application in the qualitative or quantitative analysis of diphenol.