Investigation the inhibitory action of novel diquaternary Schiff dibases on the acid dissolution of carbon steel in 1 M hydrochloric acid solution

被引：39
作者：
Negm, N. A. [1 ]
Badr, E. A. [1 ]
Aiad, I. A. [1 ]
Zaki, M. F. [1 ]
Said, M. M. [2 ]
机构：
[1] Egyptian Petr Res Inst, Petrochem Dept, Nasr City, Cairo, Egypt
[2] Natl Res Ctr, Dokki, Egypt
来源：
CORROSION SCIENCE | 2012年 / 65卷
关键词：
Acid solutions; Polarisation; EIS; Cathodic protection; MILD-STEEL; CORROSION INHIBITION; BASE COMPOUNDS; SULFURIC-ACID; TRIAZOLE DERIVATIVES; ADSORPTION BEHAVIOR; ELECTROCHEMICAL DC; STAINLESS-STEEL; HCL SOLUTION; AMINO-ACIDS;
D O I：
10.1016/j.corsci.2012.08.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Corrosion inhibition of four diquaternary N,N-pentane-2,4-diylidenedipyridin-4-amine (NDSI), N,N-(3-benzylidenepentane-2,4-diylidene)dipyridin-4-amine (NBDSI), N,N-[3-(4-methoxybenzylidene)pentane-2,4-diylidene]dipyridin-4-amine (NMDSI) and N,N-[3-(4-chlorobenzylidene)pentane-2,4-diylidene]dipyridin-4-amine (NCDSI) on carbon steel was investigated by gravimetric measurements, polarisation and electrochemical impedance spectroscopy (EIS). The effect of concentration and immersion time was studied. The results show that the inhibitors are good inhibitor for corrosion reaction of carbon steel and obey Langmuir adsorption isotherm. Polarisation curves showed their behaviours as mixed-type inhibitors. EIS spectra exhibit one capacitive loop and confirm the inhibitive ability. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：77 / 86
页数：10
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