硫醇分子链长对氧化还原自组装多层膜电化学行为影响的初步研究(英文)

电化学（中英文） ›› 2005, Vol. 11 ›› Issue (3): 248-253.

硫醇分子链长对氧化还原自组装多层膜电化学行为影响的初步研究(英文)

王蕴峰,张占军

中国科学院研究生院化学系,中国科学院研究生院化学系北京100049 ,北京100049

收稿日期:2005-08-28 修回日期:2005-08-28 出版日期:2005-08-28 发布日期:2005-08-28

A Preliminary Study of Influence of the Chain Length of Alkanethiols on the Electrochemical Behavior of Redox Self-Assembled Multilayer Thin Films

WANG Yun-feng,ZHANG Zhan-jun*

(Department ofChemistry, Graduate School, Chinese Academy ofSciences, Beijing100049, China)

Received:2005-08-28 Revised:2005-08-28 Published:2005-08-28 Online:2005-08-28

摘要/Abstract

摘要： 以烷基硫醇和二茂铁衍生物构建的氧化-还原自组装多层膜为模型体系,研究烷基硫醇分子链长对多层膜电化学行为的影响.实验表明,二茂铁基团和电极之间的电子传递反应速率随两者距离的增加呈现指数级下降的趋势;烷基硫醇分子链长对自组装膜电化学行为的影响于不同情况下表现不同.本实验条件下,当多层膜上的电活性基团与电极比较接近时,长链分子自组装膜呈现较强的电化学响应.而当电极与电活性基团之间的距离较远时,短链烷基硫醇分子自组装膜呈现较强的电化学响应.

关键词: 自组装多层膜, 循环伏安法, 分子链长, 氧化还原, 烷基硫醇, 电子传递

Abstract: Alkanethiols and ferrocene derivates were used to construct redox self-assembled double-or triplex-layer thin films, which acted as a model of redox self-assembled multilayer thin films (SAMTFs) to study the in-fluence of alkanethiols chain length on the electrochemical behavior of the SAMTFs. The rate of electron transferreaction decreased exponentially with the distance between the Fc groups and the underlying electrodes. The in-fluence of chain length on the electrochemical behaviors of the SAMTFs was inconsistent under different situa-tions. On the experimental situation of this work, when electroactive groups were closer to the electrodes,SAMTFs by longer chains of alkanethiols displayed stronger electrochemical responses, while when distance be-tween electroactive groups and electrodes was extended, SAMTFs by shorter chain would present more obviouselectrochemical responses.

Key words: Self-assmbled multiplayer thin films, Cyclic voltammetry, Chain length, Alkanethiols, Elec-tron transfer, Ferrocene

中图分类号:

O646

王蕴峰,张占军. 硫醇分子链长对氧化还原自组装多层膜电化学行为影响的初步研究(英文)[J]. 电化学（中英文）, 2005, 11(3): 248-253.

WANG Yun-feng,ZHANG Zhan-jun*. A Preliminary Study of Influence of the Chain Length of Alkanethiols on the Electrochemical Behavior of Redox Self-Assembled Multilayer Thin Films[J]. Journal of Electrochemistry, 2005, 11(3): 248-253.

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链接本文: https://electrochem.xmu.edu.cn/CN/

https://electrochem.xmu.edu.cn/CN/Y2005/V11/I3/248

参考文献

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