Self-assembled monolayers formed by ammonium pyrrolidine dithiocarbamate on copper surfaces in sodium chloride solution

被引：26

作者：

Zhang, X. H. ^{[1
]}

Liao, Q. Q. ^{[1
]}

Nie, K. B. ^{[1
]}

Zhao, L. L. ^{[1
]}

Yang, D. ^{[1
]}

Yue, Z. W. ^{[1
]}

Ge, H. H. ^{[1
]}

Li, Y. J. ^{[2
]}

机构：

[1] Shanghai Univ Elect Power, Shanghai Engn Res Ctr Energy Saving Heat Exchange, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China

[2] Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China

来源：

CORROSION SCIENCE | 2015年 / 93卷

关键词：

Copper; EIS; Polarization; Cyclic voltammetry; QUANTUM-CHEMICAL CALCULATIONS; LONG-TERM IMMERSION; CORROSION-INHIBITORS; MILD-STEEL; ABSOLUTE ELECTRONEGATIVITY; ELECTRONIC-STRUCTURE; ACID; NACL; ADSORPTION; BENZOTRIAZOLE;

D O I：

10.1016/j.corsci.2015.01.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The inhibiting effect of ammonium pyrrolidine dithiocarbamate (APDTC) self-assembled monolayers (SAMs) on the corrosion of copper surface in a 3 wt.% NaCl solution is reported using electrochemical methods, surface analysis and theoretical studies. The optimum conditions for formation of SAMs established using impedance studies are 1 mmol L-1 concentration of APDTC and an immersion period of 8 h and its maximum inhibition efficiency could reach 98.7%. Infrared spectrum and energy dispersive spectroscopy analyses all show that APDTC is adsorbed on the copper surface and quantum chemical calculation results reveal that the sulfur atoms are the most active adsorption sites. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：201 / 210

页数：10

共 51 条

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