Experimental and Theoretical Studies on the Protective Effect of a Biomass Corrosion Inhibitor (vigna radiata) on Mild Steel in Acidic Medium,Electroanalysis

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Experimental and Theoretical Studies on the Protective Effect of a Biomass Corrosion Inhibitor (vigna radiata) on Mild Steel in Acidic Medium
Electroanalysis ( IF 2.7 ) Pub Date : 2020-10-19 , DOI: 10.1002/elan.202060378
Chidiebere A. Maduabuchi _{1,

2} , Demian I. Njoku _{2,

3} , Obike I. Anthony ₄ , Simeon C. Nwanonenyi _{2,

5} , Christogonus Akalezi _{2,

6} , Adindu Blessing ₇ , Emeka E. Oguzie ₂

Affiliation

The scrutiny of the impeding properties of vigna radiata (VR) on mild steel corrosion in sour environs (1 M HCl and 0.5 M H₂SO₄) was done by means of gravimetric, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization methods (PDP). Polarization findings revealed that VR retarded the corrosion process in a mixed‐mode manner. Adsorption of the active components of VR was found to be in line with Langmuir adsorption isotherm. The obtained PDP result was complemented by the EIS findings. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and the theoretical technique was used to complement the results.

中文翻译：

酸性介质中生物质缓蚀剂（vigna radiata）对低碳钢的保护作用的实验和理论研究

通过重量法，电化学阻抗谱法（EIS）和电势极化法（PDP）来研究紫（（VR）对酸性环境（1 M HCl和0.5 MH ₂ SO ₄）中的低碳钢腐蚀的阻碍性能。。极化结果表明，VR以混合模式的方式延迟了腐蚀过程。发现VR的活性成分的吸附与Langmuir吸附等温线一致。获得的PDP结果得到EIS结果的补充。扫描电子显微镜（SEM），原子力显微镜（AFM）和理论技术被用来补充结果。

更新日期：2020-12-01

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