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首页> 外文期刊>International Journal of Electrochemical Science >3-Aryl Substituted Triazole Derivatives as New and Effective Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Solution
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3-Aryl Substituted Triazole Derivatives as New and Effective Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Solution

机译：3-芳基取代的三唑衍生物在盐酸溶液中作为低碳钢的新型有效缓蚀剂

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摘要

The corrosion inhibition properties of three triazoles derivatives namely 4-amino-5-phenyl-4H-1, 2, 4,- triazole-3-thiol (APTT), 4-amino-5-(2-hydroxy) phenyl-4H-1, 2, 4,-triazole-3-thiol, (AHPTT), 4- amino-5-styryl-4H-1, 2, 4,-triazole-3-thiol, (ASTT) on mild steel corrosion in 1.0 M HCl solution wasstudied using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and weightloss methods. Potentiodynamic polarization study clearly revealed that the triazoles derivatives act asmixed type inhibitors. Adsorption of the inhibitors on the mild steel surface followed Langmuiradsorption isotherm. The values of free energy of adsorption (ads) indicated that adsorption oftriazoles derivatives is a spontaneous process and they are adsorbed chemically as well as physically.The values of inhibition efficiency for all triazoles followed the order ASTT > AHPTT > APTT. The- Styryl substituted triazole exhibited highest inhibition efficiency 95.2 % at concentration of 5.72x10 4 -1 mol L .
机译：三种三唑衍生物的腐蚀抑制性能为4-氨基-5-苯基-4H-1、2,4-三唑-3-硫醇（APTT），4-氨基-5-（2-羟基）苯基-4H- 1，2，4，-三唑-3-硫醇（AHPTT），4-氨基-5-苯乙烯基-4H-1，2，4，-三唑-3-硫醇，（ASTT）在1.0 M的低碳钢腐蚀下使用电化学阻抗谱（EIS），电势极化和失重法研究了HCl溶液。电位动力学极化研究清楚地表明，三唑衍生物起混合型抑制剂的作用。抑制剂在Langmuirad吸附等温线之后在低碳钢表面上吸附。吸附自由能（ads）值表明三唑衍生物的吸附是一个自发过程，无论是化学吸附还是物理吸附，所有三唑的抑制效率值均按ASTT> AHPTT> APTT的顺序排列。苯乙烯基取代的三唑在5.72x10 4 -1 mol L的浓度下表现出最高的抑制效率95.2％。

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