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电化学(中英文) ›› 2004, Vol. 10 ›› Issue (3): 298-302. 

• 研究论文 • 上一篇    下一篇

酸性溶液中硝基苯在WC电极上的电化学还原

马淳安,褚有群,朱英红,徐志花   

  1. 浙江工业大学应用化学系,浙江工业大学应用化学系,浙江工业大学应用化学系,浙江工业大学应用化学系 浙江杭州310032 ,浙江杭州310032 ,浙江杭州310032 ,浙江杭州310032
  • 收稿日期:2004-08-28 修回日期:2004-08-28 出版日期:2004-08-28 发布日期:2004-08-28

Electrochemical Reduction of Nitrobenzene on the WC Electrode in Acidic Solution

MA Chun-an~   

  1. (*),CHU You-qun,ZHU Ying-hong,XU Zhi-hua (Department of Applied Chemistry, Zhejiang University of Technology, Hangzhou 310032,China
  • Received:2004-08-28 Revised:2004-08-28 Published:2004-08-28 Online:2004-08-28

摘要:  以聚四氟乙烯为粘接剂制成碳化钨(WC)电极.采用循环伏安法、线性扫描法和恒电位阶跃法研究了硝基苯在酸性溶液中WC电极上的电化学行为.实验表明:WC电极对硝基苯的还原具有较好的活性,电极过程受扩散和电化学步骤混合控制;表观活化能为23.7kJ·mol 1,其中,电化学步骤的活化能10.91kJ·mol 1.

关键词: 碳化钨, 硝基苯, 电化学还原

Abstract: The tungsten carbide (WC) electrode was constructed by using polyterafluoroethylene as binder. The electrochemical behavior of nitrobenzene on the WC electrode in acidic solution was investigated by cyclic voltammetry, linear scan method and chronoamperometry. Experimental results showed that WC electrode had good activity for the electrochemical reduction of nitrobenzene, and the electrode process was controlled by diffusion and electrochemical stepssimultaneously. The apparent active energy of the electrode process is 23.7kJ mol~(-1), while the active energy of the electrochemicalstep is 10.91kJ mol~(-1).

Key words: Tungsten carbide, Nitrobenzene, Electrochemical reduction

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