Guanidine Derivative As A New Corrosion Inhibitor For Copper In 3% Nacl Solution

K.F. Khaled

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Guanidine Derivative As A New Corrosion Inhibitor For Copper In 3% Nacl Solution

机译：胍衍生物作为3％Nacl溶液中铜的新型缓蚀剂

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摘要

The effect of a new corrosion inhibitor namely, N-(5,6-diphenyl-4,5-dihydro-[1,2,4]triazin-3-yl)-guanidine (NTG) has been synthesized and its inhibitive performance towards the corrosion of copper in neutral solution of 3% NaCl has been investigated. Corrosion inhibition was studied by chemical method (weight loss) and electrochemical techniques including potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM). These studies have shown that NTG was a very good inhibitor and the inhibition efficiency up to 99% in 3% NaCl is obtained. Data obtained from EIS were analyzed to model the corrosion inhibition process through equivalent circuit. Comparable results were obtained by different chemical and electrochemical methods used. The adsorption of the inhibitor on the copper surface in the acid solution was found to obey Langmuir's adsorption isotherm.

机译：合成了一种新型缓蚀剂N-（5,6-二苯基-4,5-二氢-[1,2,4]三嗪-3-基）-胍（NTG）的作用及其抑制性能。研究了在3％NaCl中性溶液中铜的腐蚀情况。通过化学方法（失重）和电化学技术研究了缓蚀性能，包括电位动力学极化，电化学阻抗谱（EIS）和电化学频率调制（EFM）。这些研究表明，NTG是一种非常好的抑制剂，在3％NaCl中的抑制效率高达99％。分析从EIS获得的数据，以通过等效电路对腐蚀抑制过程进行建模。通过使用不同的化学和电化学方法可获得可比的结果。发现该抑制剂在酸性溶液中的铜表面上的吸附符合朗缪尔的吸附等温线。

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来源
《Materials Chemistry and Physics》 |2008年第1期|p.104-111|共8页
作者
K.F. Khaled;
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作者单位

Electrochemistry Research Laboratory, Chemistry Department, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;工程基础科学;
关键词
copper corrosion inhibition; impedance; efm; 3 nacl;

机译：铜缓蚀;阻抗;efm;3％氯化钠;

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Guanidine Derivative As A New Corrosion Inhibitor For Copper In 3% Nacl Solution

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