Exploring the corrosion mitigation potential of N and O containing hetroatomic framework for aluminium surface: integration of experimental and theoretical approaches

IF 2.2 4区 化学 Q2 Engineering
Meng Xianwei, Yin Caihong, Kang Renmu, Hu Yao, Huang Xusheng, Liu Shiduo
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引用次数: 0

Abstract

Despite the simultaneous presence of organic materials may have technical advantages in shielding delicate metallic objects from corrosive conditions, little is known concerning the way organic compounds interact and the way the functional protective film is formed. For this purpose, pyrazole-pyran-pyrimidine derivative (PPP) was synthesized and employed as potential anti-corrosive inhibitor for aluminium (Al) in 1 M HCl. The results demonstrate that PPP has inhibitory efficiency of 96.8% at 400 mg/L. The PPP adsorption on the surface of Al follows the Langmuir adsorption isotherm, which takes into account both chemisorption and physisorption. Electrochemical impedance spectroscopy (EIS) results demonstrate that charge transfer resistance and double-layer capacitance increases and decreases with the addition of PPP. The adsorption of PPP was confirmed by the atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and contact angle micrographs. Furthermore, density functional theory (DFT) and molecular dynamic simulation (MD) study supports the adsorption potential of PPP over the Al (111) and Al2O3 (111) surfaces.

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来源期刊
Chemical Papers
Chemical Papers Chemical Engineering-General Chemical Engineering
CiteScore
3.30
自引率
4.50%
发文量
590
期刊介绍: Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.
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