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C6H5NH2 effect on the corrosion inhibition of aluminium in 0.5 M HCl

Omotosho, Olugbenga Adeshola and Okeniyi, Joshua Olusegun and Loto, Cleophas Akintoye and Popoola, Abimbola Patricia Idowu and Fademi, Ekundayo Oluwademilade Jacob and Oladipupo, Segun Isaac and Alabi, Ayomide Samuel and Ajibola, Omokolade Bamidele and Emelieze, Alex Nwabunor (2017) C6H5NH2 effect on the corrosion inhibition of aluminium in 0.5 M HCl. In: iii. The International Conference on Technologies and Materials for Renewable Energy, Environment and Sustainability, TMREES16-Paris, 15–18 Nov 2016, Paris, France.

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Abstract

In this paper, C6H6NH2 (aniline) effect on the corrosion of aluminium in 0.5 M (i.e. mol/L) HCl medium was studied using gravimetric method by weight loss measurements and electrochemical technique of corrosion potential and potentiodynamic polarization by cyclic voltamery (CV) instrumentation. By these techniques, corrosion rate obtained from aluminium specimens, in 0.5 HCl test-solution having different concentrations of the hydrogen-containing C6H6NH2 chemical, were requisitely analysed. Results showed that the potentiodynamic corrosion rate excellently correlated (R = 98.94%, Nash-Sutcliffe efficiency = 97.89% and ANOVA p-value = 0.0314) with function of the gravimetric corrosion rate and C6H5NH2 concentration. Both experimental and correlated prediction models identified 0.043 mol/L C6H5NH2 with optimal inhibition efficiency performance η = 84.11% by the experimental or η = 81.15% by the predicted models. Fittings of experimental and correlated data showed the data models followed the Langmuir adsorption isotherm from which favourable adsorption and prevalent physisorption were indicated as the C6H5NH2 corrosion-protection on aluminium metal in the 0.5 M HCl medium.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics
Q Science > QC Physics
Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Chemistry
Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Faculty of Engineering, Science and Mathematics > School of Mathematics
Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Dr Joshua Olusegun Okeniyi
Date Deposited: 28 Aug 2017 04:07
Last Modified: 28 Aug 2017 04:07
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/8747

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