Experimental and DFT evaluation of adsorption and inhibitive properties of Moringa oliefera extract on mild steel corrosion in acidic media
| dc.contributor.author | Akalezi, Christogonus Oudney | |
| dc.contributor.author | Maduabuchi, Arinze Chidiebere | |
| dc.contributor.author | Eneneneaku, Conrad Kenechukwu | |
| dc.contributor.author | Oguzie, Emeka Emmanuel | |
| dc.date.accessioned | 2024-10-28T12:11:43Z | |
| dc.date.available | 2024-10-28T12:11:43Z | |
| dc.date.issued | 2020-11 | |
| dc.description | This is an original article with tables and figures | |
| dc.description.abstract | The corrosion response of mild steel in 0.5 M H2SO4 acid solution in the presence of Moringer oliefera (MO) leaf extract was investigated using gravimetric, electrochemical, and DFT techniques. Gravimetric results indicate that MO exhibits a high inhibition value up to 93.0% when the concentration was 1.5 g/L. Inhibition value in general increased with an increase in concentration of the extracts but decreased with prolonged exposure time and temperature. Analysis of polarization curves indicated that MO extract acted as mixed-type inhibitors. The adsorption process of MO on a mild steel surface in the acid solution fitted the Langmuir isotherm. GC/MS analysis of MO extract revealed the presence of more than 29 active constituents including 9,12-Octadecadienoic acid (Z, Z) methyl ester (28.55%); n-Hexadecanoic acid (11.24%); 9,12,15-Octadecatrienoic acid methyl ester (9.31%), Benzeneacetonitrile, 4-hydroxy-(6.32%),2-Furancarboxaldehyde,5-(hydroxymethyl)-(5.6%), Heptadecane (4.85%). Quantum chemical calculations were applied on some of the identified constituents to assess their adsorbability on the mild steel surface and the result revealed remarkable high interaction energies. | |
| dc.description.sponsorship | World Bank Africa Centers of Excellence for Impact (Ace Impact) project (NUC/ES/507/1/304) | |
| dc.identifier.citation | Akalezi, C. O., Maduabuchi, A. C., Enenebeaku, C. K. & Oguzie, E. E. (2020). Experimental and DFT evaluation of adsorption and inhibitive properties of Moringa oliefera extract on mild steel corrosion in acidic media. Arabian Journal of Chemistry, 13(12), 9270 - 9282 | |
| dc.identifier.doi | https://doi.org/10.1016/j.arabjc.2020.11.010 | |
| dc.identifier.uri | https://repository.futo.edu.ng/handle/20.500.14562/1410 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier B. V. on behalf of King Saudi University | |
| dc.rights | Attribution-NonCommercial-ShareAlike 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.subject | Moringa oliefera | |
| dc.subject | plant extract | |
| dc.subject | inhibitor | |
| dc.subject | experimental technique | |
| dc.subject | DFT technique | |
| dc.subject | Department of Chemistry | |
| dc.title | Experimental and DFT evaluation of adsorption and inhibitive properties of Moringa oliefera extract on mild steel corrosion in acidic media | |
| dc.type | Article |