Inhibition of mild steel corrosion in acidic medium by vanillin cationic surfactants

被引：62
作者：
Shaban, Samy M. [1 ]
Aiad, Ismail [1 ]
El-Suldary, Mohamed M. [1 ]
Soliman, E. A. [2 ]
El-Awady, Moshira Y. [1 ]
机构：
[1] Egyptian Petr Res Inst, Petrochem Dept, Cairo, Egypt
[2] Ain Shams Univ, Fac Sci, Cairo, Egypt
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2015年 / 203卷
关键词：
Weight loss; Potentiodynamic polarization; Impedance; Surfactant; Adsorption isotherm; COLD-ROLLED STEEL; CARBON-STEEL; THERMODYNAMIC CHARACTERIZATION; ADSORPTION PROCESSES; METAL DISSOLUTION; COPPER CORROSION; SCHIFF-BASE; DERIVATIVES; HCL; BENZIMIDAZOLE;
D O I：
10.1016/j.molliq.2014.12.033
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：
Corrosion inhibition of three cationic surfactants based on vanillin was evaluated using three different techniques, weight loss, polarization and impedance. Surface coverage from weight loss at four different temperatures was used to fit different adsorption isotherms for obtaining more insight on the mechanism of adsorption on steel surface. The best adsorption isotherm was vilamil isotherm. The chemical structures of the prepared cationic surfactants were confirmed by different techniques, FTIR,(HNMR)-H-1 and mass spectroscopy. The prepared inhibitors showed high inhibition efficiency for carbon steel in 1.0 M HCl. (C) 2014 Elsevier B.V. All rights reserved.
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页码：20 / 28
页数：9
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