高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (2): 326.

• 研究论文 • 上一篇    下一篇

离子液体中间硝基苯酚在玻碳电极上的电化学还原行为研究

王欢, 叶小鹤, 陈黎明, 陆嘉星, 何鸣元   

  1. 华东师范大学化学系, 上海市绿色化学与化工过程绿色化重点实验室, 上海 200062
  • 收稿日期:2004-02-19 出版日期:2005-02-10 发布日期:2005-02-10
  • 通讯作者: 陆嘉星(1952年出生),男,教授,博士生导师,主要从事有机电合成.E-mail:jxlu@chem.ecnu.edu.cn E-mail:jxlu@chem.ecnu.edu.cn
  • 基金资助:

    国家“九七三”计划项目(批准号:G200008)资助

Electrochemical Reduction Behavior of m-Nitrophenol on GC Electrode in Ionic Liquid [EMIM]Br

WANG Huan, YE Xiao-He, CHEN Li-Ming, LU Jia-Xing, HE Ming-Yuan   

  1. Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, Shanghai 200062, China
  • Received:2004-02-19 Online:2005-02-10 Published:2005-02-10

PDF (PC)

被引次数

139

摘要： 在[EMIM]Br体系中,以玻碳为工作电极,铂丝为辅助电极,饱和甘汞电极为参比电极,研究了间硝基苯酚的电化学行为.采用循环伏安法和计时电量法,研究了扫描速度、温度和底物浓度等因素对其电化学行为的影响,求得扩散系数D为9.184×10-7cm2/s,传递系数α为0.37,证明了在[EMIM]Br体系中,此反应是受扩散控制的不可逆反应.

关键词: 溴化1-乙基-3-甲基咪唑([EMIM]Br), 循环伏安法, 计时电量法, 间硝基苯酚

Abstract: The direct electrochemical reduction of m-nitrophenol on GC electrode was investigated in ionic liquid(IL), 1-ethyl-3-methylimidazolium bromide([EMIM]Br) by using cyclic voltammetry and chronocoulometry. The diffusion coefficient D of m-nitrophenol in [EMIM]Br was 9.184×10-7 cm2/s, while the transfer coefficient was 0.37. It can be proved that the reduction of m-nitrophenol on GC electrode was an irreversible process and the electrode reaction was diffusion-controlled by cyclic voltammetry.

Key words: 1-Ethyl-3-methylimidazolium bromide([EMIM]Br), Cyclic voltammetry, Chronocoulometry, m-Nitrophenol

中图分类号: 

TrendMD: