Abstract

The mitigation impacts of two quinolin-8-ol-piperazine analogs 7-((4-(benzo[d][1,3]dioxol-5-ylmethyl)piperazin-1-yl)methyl)quinolin-8-ol (OPMQ) and 7-((4-benzylpiperazin-1-yl)methyl)quinolin-8-ol (BPMQ) on the C35E steel corrosion in 1 M HCl environment were examined by gravimetric, electrochemical, surface analysis, electrolyte analysis, as well as molecular modeling techniques. The examined OPMQ and BPMQ exhibited obvious anticorrosion performances within the scope of concentrations and temperature considered, maximum reached of 95.1% and 88.7% at 10⁻³ M, respectively. Polarization examinations demonstrated that the OPMQ and BPMQ being as mixed-type inhibitors. Moreover, the quinolin-8-ol-piperazine analogs adsorption obeyed the Langmuir adsorption isotherm, presenting chemical interactions. Thermodynamic and kinetic quantities were estimated and discussed. Uv/Visible spectra proved the occurrence of chemical interaction among the C35E steel and quinolin-8-ol-piperazine analogs molecules, while no damages have been observed in the SEM images after the addition of quinolin-8-ol-piperazine analogs adsorption to the corrosive electrolyte. The computational correlations (DFT and Molecular Dynamic simulations) justify the experimental observations.

Title

Ismail

Publisher

warad

Publisher Country

Palestine

Publication Type

Prtinted only

Volume

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Year

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Pages

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