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Inhibitory Action of Funtumia elastica Extracts on the Corrosion of Q235 Mild Steel in Hydrochloric Acid Medium: Experimental and Theoretical Studies
M. A.; Oguzie Chidiebere, E. E.; Liu, L.; Li, Y.; Wang, F. H.
2015
Source PublicationJournal of Dispersion Science and Technology
ISSN0193-2691
Volume36Issue:8Pages:1115-1125
AbstractThe inhibiting effect of aqueous extracts of Funtumia elastica (FE) on mild steel corrosion in 1M HCl solution was investigated using electrochemical and surface characterization techniques. The results revealed that FE effectively inhibited the corrosion reaction. Polarization data reveal that the extract functioned as a mixed-type inhibitor, while impedance results show that the extract organic matter gets adsorbed on the metal/solution interface. Fourier transform infrared spectroscopy, scanning electron microscopy, and atomic force microscopy results confirmed the formation of a protective layer of extract adsorbed on the mild steel surface. Adsorption of some organic constituents of FE on mild steel was theoretically described by quantum chemical computations and molecular dynamics simulations, in the framework of the density functional theory.
description.department[chidiebere, maduabuchi a. ; liu, li ; li, ying ; wang, fuhui] chinese acad sci, inst met res, shenyang 110016, peoples r china. [chidiebere, maduabuchi a. ; oguzie, emeka e.] fed univ technol owerri, dept chem, electrochem & mat sci res lab, owerri, nigeria. ; li, y (reprint author), chinese acad sci, inst met res, 62 wencui rd, shenyang 110016, peoples r china. ; liying@imr.ac.cn
KeywordCorrosion Inhibition Mild Steel Polarization Scanning Electron Microscopy Electrochemical Impedance Spectroscopy Adsorption Behavior Natural-products Carbon-steel Iron Derivatives Efficiency Surface
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73780
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
M. A.,Oguzie Chidiebere, E. E.,Liu, L.,et al. Inhibitory Action of Funtumia elastica Extracts on the Corrosion of Q235 Mild Steel in Hydrochloric Acid Medium: Experimental and Theoretical Studies[J]. Journal of Dispersion Science and Technology,2015,36(8):1115-1125.
APA M. A.,Oguzie Chidiebere, E. E.,Liu, L.,Li, Y.,&Wang, F. H..(2015).Inhibitory Action of Funtumia elastica Extracts on the Corrosion of Q235 Mild Steel in Hydrochloric Acid Medium: Experimental and Theoretical Studies.Journal of Dispersion Science and Technology,36(8),1115-1125.
MLA M. A.,et al."Inhibitory Action of Funtumia elastica Extracts on the Corrosion of Q235 Mild Steel in Hydrochloric Acid Medium: Experimental and Theoretical Studies".Journal of Dispersion Science and Technology 36.8(2015):1115-1125.
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