Self-assembled monolayers of stearic imidazoline on copper electrodes detected using electrochemical measurements, XPS, molecular simulation and FTIR

被引：10

作者：

Liu Xiuyu ^{[1
,2
]}

Ma Houyi ^{[2
]}

Miao Shuai ^{[1
]}

Zhou Min ^{[2
]}

机构：

[1] Shandong Acad Sci, New Mat Inst, Jinan 250014, Peoples R China

[2] Shandong Univ, Dept Chem, Jinan 250100, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2009年 / 54卷 / 03期

基金：

中国国家自然科学基金;

关键词：

copper; self-assembled monolayers (SAMs); electrochemical impedance spectroscopy (EIS); imidazoline inhibitor; CARBON-DIOXIDE CORROSION; MULTIPHASE FLOW; MILD-STEEL; INHIBITION; IRON; ACID; DERIVATIVES; EFFICIENCY; TRIAZOLE; FILMS;

D O I：

10.1007/s11434-008-0523-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A type of imidazoline inhibitor was synthesized using stearic acid and diethylenetriamine (DETA) as raw materials. Self-assembled monolayers (SAMs) of stearic imidazoline (IM) were prepared on copper surface. The copper electrode modified by IM was detected by electrochemical impedance spectros-copy (EIS), Tafel polarization curves, X-ray photoelectron spectroscopy (XPS) and Fourial transform reflection spectroscopy (FTIR). The biggest inhibition efficiency for copper corrosion of IM was 99% in NaCl solution according to EIS results. The XPS results provided evidence that the IM was adsorbed on copper surface. The theoretical calculations of molecular simulation supported the experimental results and showed that the IM molecules were tilted at an angle to the copper surface.

引用

页码：374 / 381

页数：8

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