Corrosion Protection of Copper by Self-Assembled Monolayers Modified in Aqueous Micellar Solution

被引：9
|
作者：
Wu, Sisi [1 ]
Chen, Zhenyu [1 ]
Qiu, Yubing [1 ]
Guo, Xingpeng [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Wuhan 430074, Peoples R China
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2012年 / 159卷 / 07期
关键词：
LIQUID-CRYSTALLINE MEDIUM; GOLD; ALKANETHIOL; IMPEDANCE; FILMS; ELECTRODISSOLUTION; SPECTROSCOPY; SURFACES; THIOLS; CU;
D O I：
10.1149/2.013207jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Dodecanethiol self-assembled monolayers (SAMs) were formed on copper in aerated and deaerated aqueous micellar solutions of cetyltrimethyl ammonium bromide (CTAB), respectively. The corrosion inhibition effect was investigated in 0.51 mol/L NaCl solution using electrochemical impedance spectroscopy and polarization curves. The surface covered with SAMs was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy and attenuated total reflection Fourier transform infrared spectroscopy. The inhibition efficiency of the SAMs formed in aerated solution and deaerated solution is 99.955% and 99.60%, respectively. During the self-assembly process in aerated solution, CTAB molecules are trapped into dodecanethiol SAMs. The mechanism involved is proposed and discussed. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.013207jes] All rights reserved.
引用
收藏
页码：C277 / C282
页数：6
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