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首页> 外文期刊>Applied Surface Science >Investigation of the inhibitive effect of triphenyltin 2-thiophene carboxylate on corrosion of steel in 2 M H3PO4 solutions
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Investigation of the inhibitive effect of triphenyltin 2-thiophene carboxylate on corrosion of steel in 2 M H3PO4 solutions

机译：三苯基锡2-噻吩羧酸盐对2 M H3PO4溶液中钢腐蚀的抑制作用研究

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摘要

A new organic compound was synthesised and tested as corrosion inhibitor of steel in phosphoric acid medium using gravimetric, electrochemical polarisation and electrochemical impedance spectroscopy (EIS) measurements. Results obtained show that the inhibitor studied is a good cathodic inhibitor. EIS results show that the change in the impedance parameters (R-T and C-dl) with concentration of triphenyltin 2-thiophene carboxylate (TTC) is indicative of the adsorption of molecules leading to the formation of a protective layer on the surface of steel. The effect of the temperature on the steel corrosion in 2 M H3PO4 and with addition of various concentrations of TTC in the range of temperature 298348 K was studied. The associated apparent activation corrosion energy has been determined. (c) 2005 Elsevier B.V. All rights reserved.
机译：合成了一种新的有机化合物，并通过重量分析，电化学极化分析和电化学阻抗谱（EIS）测量对钢在磷酸介质中的腐蚀抑制剂进行了测试。获得的结果表明，所研究的抑制剂是良好的阴极抑制剂。 EIS结果表明，阻抗参数（R-T和C-dl）随三苯基锡2-噻吩羧酸盐（TTC）浓度的变化指示分子的吸附，从而导致在钢表面形成保护层。研究了温度对2 M H3PO4中钢腐蚀的影响以及在298348 K温度范围内添加各种浓度的TTC的影响。已经确定了相关的表观活化腐蚀能。 （c）2005 Elsevier B.V.保留所有权利。

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