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- W4221083967 endingPage "119015" @default.
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- W4221083967 abstract "• High efficiency CBP and BP molecule were discovered to retard the copper corrosion. • Molecular dynamics simulations show that CBP is more parallel to copper surface. • The inhibition efficiency of 5 mM CBP and BP for Cu in H 2 SO 4 was more than 95%. • The presence of halogen Cl enhances the anti-corrosion efficiency of CBP. The inhibition mechanism of 1-(4-Chlorobenzhydryl)piperazine (CBP) and benzhydrylpiperazine (BP) on copper media in 0.5 M H 2 SO 4 was assessed by theoretical calculation engaged with experimental ways. Electrochemical results manifested that both CBP and BP are cathode-type corrosion inhibitors with excellent corrosion resistance. The corrosion inhibition of 5 mM CBP and 5 mM BP was 97.40% and 95.26% at 298 K, respectively. The electrochemical results were pithily demonstrated by atomic force microscopy (AFM) and scanning electron microscopy (SEM), both of which showed that CBP and BP had good corrosion resistance and corrosion resistance is CBP > BP. In addition, Fourier transform infrared spectroscopy (FTIR) analysis of CBP and BP valence bond information at the copper media, X-ray photoelectron spectroscopy (XPS) detected that CBP formed one more Cl Cu bond than BP. The mixed adsorption of CBP and BP was checked by Langmuir isothermal model. Quantum chemical calculations revealed that CBP has more active adsorption sites than BP, and Molecular dynamics simulation shows that the parallelism between CBP and copper surface makes copper exposed to corrosion less than BP. These results further demonstrate that η (CBP) > η (BP)." @default.
- W4221083967 created "2022-04-03" @default.
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- W4221083967 date "2022-06-01" @default.
- W4221083967 modified "2023-09-29" @default.
- W4221083967 title "Penetration into the inhibition performance of two piperazine derivatives as high-efficiency inhibitors for copper in sulfuric acid environment" @default.
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- W4221083967 doi "https://doi.org/10.1016/j.molliq.2022.119015" @default.
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