Experimental and theoretical studies on the corrosion inhibition performance of 4-amino-N,N-di-(2-pyridylmethyl)-aniline on mild steel in hydrochloric acid

Bin Xu, Yan Ji, Xueqiong Zhang, Xiaodong Jin, Wenzhong Yang, Yizhong Chen

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84 引用 (Scopus)

摘要

The corrosion inhibition properties of a pyridine derivative with more than one pyridine ring, 4-amino-N,N-di-(2-pyridylmethyl)-aniline, on mild steel in 1.0 M hydrochloric acid were estimated by potentiodynamic polarization, electrochemical impedance spectroscopy and surface analysis methods. The results showed that 4-amino-N,N-di-(2-pyridylmethyl)-aniline was a mixed type inhibitor and the inhibition efficiency decreased with the rise in temperature. The adsorption process followed the Langmuir adsorption isotherm. The thermodynamic parameters responsible for the adsorption process were also discussed. Quantum chemical calculations were performed to correlate electronic structure parameters of 4-amino-N,N-di-(2-pyridylmethyl)-aniline with its inhibition performance. Molecular dynamics simulations were also used to investigate the equilibrium configurations of 4-amino-N,N-di-(2-pyridylmethyl)-aniline on the iron surface.

源语言英语
页(从-至)56049-56059
页数11
期刊RSC Advances
5
69
DOI
出版状态已出版 - 2015

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