Characterization of Formation Kinetics of Self-Assembled Thiol Monolayers on Gold by Electrochemical Impedance Spectroscopy

作     者：Peng DIAO Min GUO Ru Ting TONG 

作者机构：Department of ChemistryHebei Teacher’s UniversityShijiazhuang 050016 Department of Traditional Chinese PharmacyTraditional Chinese Medicine CollegeHebei Medical UniversityShijiazhuang 050091 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2000年第11卷第12期

页      面：1085-1088页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the Natural Science Foundation of Hebei Province 

主　　题：self-assembled thiol monolayer electrochemical impedance spectroscopy adsorption kinetics 

摘      要：Self-assembled monolayers of octadecanethiol (ODT) on gold have been studied by electrochemical impedance spectroscopy (EIS). The fractional coverage has been examined as a function of immersion time of Au in ODT deposition solution. The fractional coverage exhibits two distinct adsorption steps: an initial rapid step followed by a slow one. The fractional coverage of ODT monolayer increases sharply from zero to more than 99% of its maximum within the first minute. However. it takes a day for the fractional coverage to approach its final value.