期刊名称:Journal of Materials and Environmental Science
印刷版ISSN:2028-2508
出版年度:2014
卷号:5
期号:1
页码:310-319
出版社:University of Mohammed Premier Oujda
摘要:The effects of natural Jatropha curcas oil on the corrosion of steel in molar hydrochloric acid were studied via the measurements of weight loss, electrochemical and EIS polarisation. The results obtained revealed that Jatropha curcas oil reduced the rate of corrosion. The corrosion inhibition efficiency increased with the increase of inhibitor concentration. Potentiodynamic polarisation studies clearly revealed that the presence o f the natural Jatropha curcas oil did not alter the mechanism of the hydrogen evolution reaction and acted a mixed inhibitor. The adsorption of Jatropha curcas oil on the steel surface in molar in hydrochloric acid obeys to the Frumkin adsorption isotherm model