Cerium salt as green corrosion inhibitor for steel in acid medium

被引：0

作者：

K. F. Khaled

E. Ebenso

机构：

[1] Faculty of Education,Electrochemistry Research Laboratory, Chemistry Department

[2] Ain Shams University,Materials and Corrosion Laboratory, Chemistry Department

[3] Faculty of Science,Department of Chemistry, School of Mathematical and Physical Sciences

[4] Taif University,Material Science Innovation and Modelling (MaSIM) Research Focus Area

[5] North West University (Mafikeng Campus),undefined

[6] Faculty of Agriculture,undefined

[7] Science and Technology,undefined

[8] North-West University (Mafikeng Campus),undefined

来源：

Research on Chemical Intermediates | 2015年 / 41卷

关键词：

Steel; Polarization; EIS; EFM; Acid inhibition;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The inhibition performance of cerium sulphate tetrahydrate on the corrosion of steel in 1.0 M HCl solutions was investigated by using chemical (weight loss), electrochemical (electrochemical frequency modulation, electrochemical impedance spectroscopy, potentiodynamic polarization) and atomic force microscopy (AFM) at 25 ± 1 °C. Cerium sulphate tetrahydrate gave sufficient inhibition for the steel surface in molar hydrochloric acid solutions. AFM measurements show that the steel surface roughness was 123.08 nm before immersion, increased to 764.24 nm after immersion in uninhibited solution, and became 122.62 nm in the presence of the salt owing to the protective formation of an inhibitor layer.

引用

页码：49 / 62

页数：13

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