4-aminoazobenzene modified natural glucomannan as a green eco-friendly inhibitor for the mild steel in 0.5 M HCl solution

By Xiaohu Luo, Cheng-gang Ci, Ji Li, Kaidong Lin, Shuo Du, Huixia Zhang, Xiang-bo Li, Yufeng Cheng, Jiechao Zang, Yali Liu. Corrosion Science, 2019

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Abstract The corrosion inhibition effect of a green eco-friendly 4-aminoazobenzene modified natural glucomannan (GL-PA) on the corrosion protection of mild steel in 0.5 M HCl solution is investigated by electrochemical measurements and surface characterization. The results show that the GL-PA acts as a mixed-type inhibitor and can provide effective corrosion inhibition for mild steel. The corrosion inhibition is achieved by the chemical as well as physical adsorption of the GL-PA on the surface of the mild steel, and the adsorption fairly obeys the Langmuir isotherm.

Subfields: Biomedical Engineering, Civil and Structural Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/f5010f5a572b810b2bb522dd6d35ddac6ce593e7