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Issue 78, 2016, Issue in Progress
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Theoretical evaluation of some benzotriazole and phospono derivatives as aluminum corrosion inhibitors: DFT and molecular dynamics simulation approaches

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Abstract

The adsorption and corrosion inhibition properties of some benzotriazole and phospono derivatives namely, 1-(2-pyrrolecarbonyl)-benzotriazole (PBTA), 1-(2-thienylcarbonyl)-benzotriazole (TBTA), 2-phosphonoacetic acid (PAA) and 4-phosphonobutyric acid (PBA) on the corrosion of aluminum were investigated by quantum chemical calculations and by molecular dynamics simulations. Global reactivity descriptors such as EHOMO, ELUMO, HOMO–LUMO energy gap (ΔE), chemical hardness (η), softness (σ), electronegativity (χ), proton affinity (PA), electrophilicity (ω) and nucleophilicity (ε) have been calculated and discussed. The analysis of the adsorption behavior of these mentioned inhibitors on the Al (111) surface was investigated using molecular dynamics simulations. The binding energies on the Al (111) surface of the studied compounds followed the order: PBTA > TBTA > PBA > PAA. The results obtained in this study are compatible with experimental data and it is proposed that the above mentioned molecules can be successfully used to prevent the corrosion of aluminum metal.

Graphical abstract: Theoretical evaluation of some benzotriazole and phospono derivatives as aluminum corrosion inhibitors: DFT and molecular dynamics simulation approaches

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Publication details

The article was received on 04 Jun 2016, accepted on 01 Aug 2016 and first published on 01 Aug 2016


Article type: Paper
DOI: 10.1039/C6RA14548E
RSC Adv., 2016,6, 74550-74559

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    Theoretical evaluation of some benzotriazole and phospono derivatives as aluminum corrosion inhibitors: DFT and molecular dynamics simulation approaches

    S. Kaya, P. Banerjee, S. Kr. Saha, B. Tüzün and C. Kaya, RSC Adv., 2016, 6, 74550
    DOI: 10.1039/C6RA14548E

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