The Electrochemical Apparent Effective Thickness of Alkanethiol Self-Assembled Monolayers

Authors

Xiao-li CUI, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001. Department of Chemistry, Hebei Normal University, Shijiazhuang 050016
Dian-lu JIANG, Department of Chemistry, Hebei Normal University, Shijiazhuang 050016
Peng DIAO, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001. Department of Chemistry, Hebei Normal University, Shijiazhuang 050016
Jun-xin LI, Department of Chemistry, Hebei Normal University, Shijiazhuang 050016
Ru-ting TONG, Department of Chemistry, Hebei Normal University, Shijiazhuang 050016
Deng-ping GU, Department of Chemistry, Hebei Normal University, Shijiazhuang 050016
Xin-kui WANG, Institute of Coal Chemistry,Chinese Academy of Science,Taiyuan 030001;

Corresponding Author

Xiao-li CUI; Ru-ting TONG

Abstract

The electrochemical behavior of octadecanethiol self-assembled monolayers modified gold electrode in different concentration of Fe(CN)6^3-/4- is investigated by cyclic voltammetry and electrochemical impedance spectroscopy. It is determined that the apparent he-terogeneous rate constant k_s is in the order of 10^-6 cm·s^-1, the apparent electron transfer coefficients are 0.15 and 0.22. The apparent effective thickness of the SAMs is established which can be used to describe the molecular ordering degree of self-assembled monolayers.

Keywords

Electrochemistry, Octadecanethiol, Self-assembled monolayers, The apparent effective thickness, Defects

DOI Link

https://doi.org/10.61558/2993-074X.3186

Publication Date

1999-08-28

Online Available Date

1999-08-28

Revised Date

1998-11-22

Received Date

1998-09-10

Recommended Citation

Xiao-li CUI, Dian-lu JIANG, Peng DIAO, Jun-xin LI, Ru-ting TONG, Deng-ping GU, Xin-kui WANG. The Electrochemical Apparent Effective Thickness of Alkanethiol Self-Assembled Monolayers[J]. Journal of Electrochemistry, 1999 , 5(3): 267-271.
DOI: 10.61558/2993-074X.3186
Available at: https://jelectrochem.xmu.edu.cn/journal/vol5/iss3/10