Self-assembled 1-octadecyl-1H-1,2,4-triazole films on copper for corrosion protection

被引：15

作者：

Rao, B. V. Appa ^{[1
]}

Reddy, M. Narsihma ^{[1
]}

Sreedhar, B. ^{[2
]}

机构：

[1] Natl Inst Technol Warangal, Dept Chem, Warangal 506004, Andhra Pradesh, India

[2] Indian Inst Chem Technol, Inorgan & Phys Chem Div, Hyderabad 500007, Andhra Pradesh, India

来源：

PROGRESS IN ORGANIC COATINGS | 2014年 / 77卷 / 01期

关键词：

Copper; 1,2,4-Triazole; Self-assembly; Electrochemical impedance spectroscopy; XPS; CHLORIDE MEDIA; MONOLAYERS; INHIBITION; DEPOSITION; OXIDATION; ABILITY;

D O I：

10.1016/j.porgcoat.2013.09.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A film of 1-octadecyl-1H-1,2,4-triazole (OTA) was formed on a fresh copper surface by self-assembly technique. The optimum concentration of OTA and immersion time for the formation of a protective OTA film have been established using electrochemical impedance spectroscopy (EIS). These are (i) 15 mM concentration of OTA in methanol and (ii) immersion period of 48 h. X-ray photoelectron spectroscopy (XPS), reflection absorption FTIR spectroscopy, atomic force microscopy (AFM), and contact angle measurements have been used to characterize the OTA film on copper surface. The efficiency of OTA film to protect copper from corrosion in aqueous NaCl environment has been investigated using EIS, potentio-dynamic polarization studies, cyclic voltammetry and weight-loss studies. All these studies showed that the OTA film affords excellent protection against corrosion of copper. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：202 / 212

页数：11

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