Manssouri, M. and Znini, M. and Ansari, A. and Bouyenzer, A. and Faska, Z. and Majidi, L. (2014) Odorized and deodorized aqueous extracts of Ammodaucus leucotrichus fruits as green inhibitor for C38 steel in hydrochloric acid solution. Der Pharma Chemica, 6 (6). pp. 331-345.

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Abstract

The efficacy of the aqueous extracts of Ammodaucus leucotrichus fruits (E1 and E2) as corrosion inhibitors for C38 steel in 1M HCL solution has been studied by weight loss measurement as well as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. From loss measurements, is clear that inhibition efficiency values were significantly increased with increasing both concentration of each inhibitor and temperature. Polarization measurements showed that the studied inhibitors are mixed type with significant reduction of cathodic and anodic current densities. The results of EIS measurements indicated that the corrosion of steel is mainly controlled by the charge transfer process. Various activation and adsorption thermodynamic parameters are evaluated and discussed. Linearity of Langmuir isotherm adsorptions indicated the monolayer formation of each inhibitor on C38 steel surface.

Item Type: Article
Uncontrolled Keywords: Ammodaucus leucotrichus extract; hydrochloric acid; plant extract; steel; unclassified drug; water, adsorption; Ammodaucus leucotrichus; Apiaceae; Article; biological activity; concentration (parameters); corrosion; corrosion inhibition; deodorization; electric current; electrochemical detection; electrochemical impedance spectroscopy; fruit; green chemistry; nonhuman; odor; surface property; thermodynamics
Subjects: Chemistry
Divisions: SCIENTIFIC PRODUCTION > Chemistry
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:45
URI: http://eprints.umi.ac.ma/id/eprint/1929

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