Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (13): 1309-1313. Previous Articles     Next Articles

Original Articles

表面活性剂对硫醇单层膜修饰金电极电化学行为的影响

马勇1,2,王建国2,惠飞2,霍俊杰2,臧树良*,1,2   

  1. (1华东师范大学化学系 上海 200062)
    (2辽宁大学稀散金属研究所 沈阳 110036)
  • 投稿日期:2005-08-02 修回日期:2006-03-14 发布日期:2006-07-14
  • 通讯作者: 臧树良

Influence of Surfactant on Electrochemical Behavior of Gold Electrode Modified with Thiol Monolayer

MA Yong1,2, WANG Jian-Guo2, HUI Fei2, HUO Jun-Jie2, ZANG Shu-Liang*,1,2   

  1. (1 Department of Chemistry, East China Normal University, Shanghai 200062)
    (2 Institute of Rare and Scattered Metal Chemistry, Liaoning University, Shenyang 110036)
  • Received:2005-08-02 Revised:2006-03-14 Published:2006-07-14
  • Contact: ZANG Shu-Liang

Self-assembled monolayer of 1-dodecanethiol was prepared on gold electrode. The different kinds of probes such as ferrocyanide/ferricyanide, dopamine, ascorbic acid and hydroquinone were used to investigate the electron-transfer process in the presence of surfactant hexadecyltrimethylammonium bromide. Cyclic voltammetry and electrochemical impedance spectroscopy studies showed the selective electrochemical recognition of probe molecules in solution on self-assembled monolayer of thiol, and the possible mechanism was also discussed.

Key words: self-assembled monolayer, surfactant, cyclic voltammetry, ac impedance