物理化学学报 >> 2006, Vol. 22 >> Issue (05): 635-637.doi: 10.3866/PKU.WHXB20060523

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质子惰性介质中硝基苯在铂微盘电极上的电化学行为

马淳安;盛江峰;王晓娟;张诚;王连邦   

  1. 浙江工业大学绿色化学合成技术国家重点实验室培育基地, 化学工程与材料学院,杭州 310032
  • 收稿日期:2005-11-01 修回日期:2005-12-22 发布日期:2006-04-28
  • 通讯作者: 马淳安 E-mail:science@zjut.edu.cn

Electrochemical Behavior of Nitrobenzene on Pt Micro-disk Electrode in Aprotic Medium

MA Chun-An;SHENG Jiang-Feng;WANG Xiao-Juan;ZHANG Cheng;WANG Lian-Bang   

  1. State Key Laboratory of Green Chemistry-Synthesis Technology, College of Chemical Engineering &Materials Science, Zhejiang University of Technology, Hangzhou 310032, P. R. China
  • Received:2005-11-01 Revised:2005-12-22 Published:2006-04-28
  • Contact: MA, Chun-An E-mail:science@zjut.edu.cn

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摘要： 采用循环伏安法, 以铂微盘电极为工作电极, 铂片为辅助电极, 饱和甘汞电极为参比电极, 研究了硝基苯在含有四丁基高氯酸铵(TBAP)电解质的N,N-二甲基甲酰胺(DMF)有机溶液中的电化学行为, 并探讨了扫描速度和底物浓度等因素对硝基苯电化学特性的影响. 结果表明,该反应属扩散控制的准可逆反应.

关键词: 硝基苯, 电化学行为, 质子惰性介质, 微盘电极, 循环伏安法

Abstract: In a three-electrode system, dimethylformamide (DMF) and tetrabutyl ammoniumperchlorate (TBAP) used as solvent and supporting electrolyte, Pt micro-disk as working electrode, Pt plate as auxiliary electrode, saturated calomel electrode as reference electrode, the electrochemical behavior of nitrobenzene were studied by mean of cyclic voltammetry. The effects of scan rate and reactant concentration on electrochemical characteristics of nitrobenzene were investigated systematically. It was shown that the ArNO2/ArNO[rad]-2 redox reaction of nitrobenzene on Pt micro-disk electrode was a reversible process with one transfer electron. The control step in this electrochemical process was attributed to the diffusion of nitrobenzene or its electrochemical reductive product.

Key words: Nitrobenzene, Electrochemical behavior, Aproticmedium, Micro-disk electrode, Cyclic voltammetry