物理化学学报 >> 2011, Vol. 27 >> Issue (08): 1854-1858.doi: 10.3866/PKU.WHXB20110828

电化学和新能源 上一篇    下一篇

自支撑CNTs/SMF-Ni电极上电催化氧气氧化茴香醚合成茴香醛

方玉珠, 姜芳婷, 路勇   

  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:2011-03-22 修回日期:2011-05-18 发布日期:2011-07-19
  • 通讯作者: 路勇 E-mail:ylu@chem.ecnu.edu.cn
  • 基金资助:

    国家自然科学基金(20973063, 21076083), 国家重点基础研究发展规划项目(973) (2011CB201403), 教育部“博士点专项基金” (20090076110006), 上海市科委“科技启明星(跟踪)计划”(10HQ1400800)和上海市重点学科建设项目(B409)资助

Electrocatalytic Performance of Self-Supporting CNTs/SMF-Ni Hybrid Electrodes for the Aerobic Oxidation of p-MT to p-MBA

FANG Yu-Zhu, JIANG Fang-Ting, LU Yong   

  1. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, P. R. China
  • Received:2011-03-22 Revised:2011-05-18 Published:2011-07-19
  • Contact: LU Yong E-mail:ylu@chem.ecnu.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation (20973063, 21076083), National Key Basic Research Program of China (973) (2011CB201403), Specialized Research Fund for the Doctoral Program of Higher Education (20090076110006), and Shanghai Rising-Star Program (10HQ1400800), Shanghai Leading Academic Discipline Project (B409).

摘要:

以具有三维开放网络结构的薄层大面积烧结8 μm金属纤维(SMF-Ni, SMF-SS(316L不锈钢))为基底, 通过乙烯催化化学气相沉积在金属纤维表面生长碳纳米管(CNTs)的方法, 制备了整体式CNTs/SMF-Ni (CNTs: 50% (w))和CNTs/SMF-SS (CNTs: 40% (w))复合材料. 研究表明, 以CNTs/SMF-Ni 为阴极材料、SMF-SS为阳极材料, 具有很高的直接电催化氧气氧化对甲氧基甲苯(茴香醚)合成对甲氧基苯甲醛(茴香醛) 的活性, 反应物转化率和产物选择性分别达95.4%和96.5%, 电流效率可超过80%.

关键词: 碳纳米管, 电化学氧化, 对甲氧基苯甲醛, 对甲氧基甲苯

Abstract:

A promising macroscopic carbon nanotube (CNT) system was developed by catalytic chemical vapor deposition through CNT growth on a three-dimensional network of sinter-locked conductive metal microfibers (i.e., SMF-Ni using 8 μm nickel fibers and SMF-SS using 8 μm SS316L fibers). The electrocatalytic performance of CNTs/SMF-Ni [CNTs: 50% (w)] and CNTs/SMF-SS [CNTs: 40% (w)] hybrids were examined as electrodes in the aerobic oxidation of p-anisaldehyde (p-MT) to p-cresol methyl ether (p-MBA). An excellent conversion of 95.4% and a target product selectivity of 96.5% can be obtained with a very high electric current efficiency of >80% in the presence of air at a current density of 16 mA·cm-2 in a methanol/p-MT/KF electrolyte using SMF-SS and CNTs/SMF-Ni as an anode and a cathode, respectively.

Key words: CNTs, Electrochemical oxidation, p-Anisaldehyde, p-Cresol methyl ether

MSC2000: 

  • O646