Attenuated total reflectance spectroscopy of simultaneous processes: Corrosion inhibition of cuprous oxide by benzotriazole

被引：9

作者：

Bratescu, Maria Antoaneta ^{[1
]}

Allred, Daniel B. ^{[2
,3
]}

Saito, Nagahiro ^{[4
]}

Sarikaya, Mehmet ^{[2
]}

Takai, Osamu ^{[1
]}

机构：

[1] Nagoya Univ, EcoTopia Sci Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Univ Washington, Genetically Engineered Mat Sci & Engn Ctr, Seattle, WA 98195 USA

[3] Nagoya Univ, Venture Business Lab, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[4] Nagoya Univ, Dept Mol Design & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

来源：

APPLIED SURFACE SCIENCE | 2008年 / 254卷 / 10期

关键词：

total internal reflection; attenuated total reflectance spectroscopy; benzotriazole; corrosion inhibition; ultraviolet evanescent wave; cuprous oxide; ATR-UV;

D O I：

10.1016/j.apsusc.2007.10.048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Attenuated total reflectance (ATR) spectroscopy was used to perform in situ studies of the corrosion inhibition of cuprous oxide (Cu2O) by benzotriazole (BTA) in aqueous solution at concentrations from 1 to 20 mu M. Because two separate processes occur simultaneously, that of Cu2O corrosion and corrosion inhibition by BTA adsorption, the spectral information was subjected to deconvolution by a conjugate gradient minimization algorithm. Under these conditions, a solution phase concentration of 7-10 mu M BTA nearly completely inhibited the corrosion of Cu2O in deionized water. Using a Langmuir adsorption model, this represented only 25% of the maximally covered surface area. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：2960 / 2966

页数：7

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