物理化学学报 >> 2012, Vol. 28 >> Issue (02): 421-426.doi: 10.3866/PKU.WHXB201112122

电化学和新能源 上一篇    下一篇

离子液体BMIMBF4中对甲氧基甲苯的电化学氧化

朱英红, 曾红燕, 李姗姗, 陆在祥, 马淳安   

  1. 浙江工业大学化学工程与材料科学学院, 绿色化学合成技术国家重点实验室培育基地, 杭州 310032
  • 收稿日期:2011-10-08 修回日期:2011-12-02 发布日期:2012-01-11
  • 通讯作者: 马淳安 E-mail:science@zjut.edu.cn
  • 基金资助:

    国家自然科学基金(21076192)和浙江省重点科技创新团队项目(2009R50002)资助

Electrochemical Oxidation of p-Methoxy Toluene in BMIMBF4 Ionic Liquid

ZHU Ying-Hong, ZENG Hong-Yan, LI Shan-Shan, LU Zai-Xiang, MA Chun-An   

  1. State Key Laboratory of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, P. R. China
  • Received:2011-10-08 Revised:2011-12-02 Published:2012-01-11
  • Contact: MA Chun-An E-mail:science@zjut.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21076192) and Key Innovation Group of Zhejiang Province, China (2009R50002).

摘要: 以离子液体1-丁基-3-甲基咪唑四氟硼酸盐(BMIMBF4)为电解质, 采用循环伏安法(CV)、计时电流法(CP)、原位傅里叶变换红外光谱(in situ FTIRS)法等手段研究了对甲氧基甲苯(p-MT)在铂电极上的电氧化行为. 实验结果表明: 对甲氧基甲苯在离子液体中的电化学氧化反应是受扩散控制的四电子不可逆过程, 估算了其扩散系数D=3.4×10-7 cm2·s-1, 主要电氧化产物为茴香醛, 加入适量的水或适当提高温度有利于电氧化反应向生成相应醛的方向进行.

关键词: 电氧化, 对甲氧基甲苯, 茴香醛, 离子液体, 原位傅里叶变换红外光谱

Abstract: The electrochemical oxidation behavior of p-methoxy toluene was studied in an ionic liquid of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) on platinum electrode by cyclic voltammetry (CV), chronoamperometry (CP), and in situ Fourier transform infrared spectroscopy (in-situ FTIRS). The results showed that the electrochemical oxidation of p-methoxy toluene in BMIMBF4 was irreversible. The four-electron process was controlled by diffusion, and the diffusion coefficient D was 3.4×10-7 cm2·s-1. The main oxidation product was anisaldehyde. A proper amount of water and a suitable temperature were favorable for the anisaldehyde.

Key words: Electrooxidation, p-Methoxy toluene, Anisaldehyde, Ionic liquid, In situ Fourier transform infrared spectroscopy

MSC2000: 

  • O646