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电化学(中英文) ›› 1999, Vol. 5 ›› Issue (4): 395-400. 

• 研究论文 • 上一篇    下一篇

硝基苯的电还原特性研究

马淳安,张文魁,黄辉,甘永平,刘美星,童少平   

  1. 浙江工业大学化工学院!杭州310027,浙江工业大学化工学院!杭州310027,浙江工业大学化工学院!杭州310027,浙江工业大学化工学院!杭州310027,浙江大学生物学系!杭州310027,浙江大学生物学系!杭州310027
  • 收稿日期:1999-11-28 修回日期:1999-11-28 出版日期:1999-11-28 发布日期:1999-11-28

Study on Electrochemical Reduction Properties of Nitrobenzene

Ma Chunan Zhang Wenkui Huang Hui Gan Yongping   

  1. (Dept.of Applied Chemistry,Zhejinag Univ. of Tech.,Hangzhou 310014) Liu Meixing Tong Shaoping (Dept. of Biol.,Zhejiang Univ.,Hangzhou 31200
  • Received:1999-11-28 Revised:1999-11-28 Published:1999-11-28 Online:1999-11-28

摘要: 采用准稳态极化、循环伏安、线性扫描和恒电位阶跃等测试方法,对H2SO4 溶液中硝基苯的电还原特性进行研究,评价了硝基苯在Cu 、Cu_Hg 和Cu_Ni 电极的电还原反应活性,研究了硝基苯电还原为PAP的中间步骤,并对反应机理进行了探讨.结果表明,硝基苯在酸性介质中的电还原反应存在中间步骤,并伴有反应物吸附现象,硝基苯电还原反应受硝基苯及其还原产物在溶液中的液相传质步骤控制

关键词: 硝基苯, 电还原, 电化学特性

Abstract: The electrochemical reduction characteristics of nitrobenzene was extensively investigated by using the techniques such as quasi_steady_state polarization,cyclic voltammetry,fast linear potential sweep method and chronoamperometry in this paper.The electroanalytic properties of Cu,Cu_Hg and Cu_Ni electrodes were evaluated.Based on the study of the transient steping behaviour of nitrobenzene to PAP,the reduction mechanism was discussed.The results showed that the transition steps existed on the electrochemical reduction of nitrobenzene in acidic solution,the reactant is also absorbed on electrodes surface. The control step in the reduction of nitrobenzene was ascribed to the diffusion of nitrobenzene and its electrochemical reductive products in the acid solution.

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