Investigation of adsorption of isoniazid derivatives at mild steel/hydrochloric acid interface: Electrochemical and weight loss methods
作者： Ashish Kumar Singh , M.A. Quraishi
DOI: 10.1016/J.MATCHEMPHYS.2010.05.035
关键词:
摘要: The corrosion inhibition properties of isoniazid derivatives, namely N-(morpholino methyl) isatin-3-isonicotinoyl hydrazone (MIIH), N-(piperazino (PIIH), N-(2-Thio benzimidazolyl (TBIH), N-(piperadino (PIIIH) for mild steel in 1 M HCl medium were analysed by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and weight loss techniques. Electrochemical data demonstrated that the addition derivatives corrosive solution decreased charge capacitance simultaneously increased function charge/discharge interface, facilitating formation an adsorbed layer over surface. Adsorption these inhibitors on surface obeyed Langmuir adsorption isotherm. Potentiodynamic studies showed all tested affected both anodic cathodic process, thus they can be classified as mixed type inhibitor. effect chemical structure four was discussed. It found efficiency order followed molecules TBIH > PIIH MIIH PIIIH. Thus turned out to best This fact strongly suggests that, efficient inhibitor molecule should large one, planar, having unoccupied d-orbital also containing extensive number π-electrons.
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sci-hub.se 参考文章(37)
Mohammed A. Amin, Sayed S. Abd El-Rehim, E.E.F. El-Sherbini, Rady S. Bayoumi, The inhibition of low carbon steel corrosion in hydrochloric acid solutions by succinic acid: Part I. Weight loss, polarization, EIS, PZC, EDX and SEM studies Electrochimica Acta. ,vol. 52, pp. 3588- 3600 ,(2007) , 10.1016/J.ELECTACTA.2006.10.019
M Özcan, İ Dehri, M Erbil, Organic sulphur-containing compounds as corrosion inhibitors for mild steel in acidic media: correlation between inhibition efficiency and chemical structure Applied Surface Science. ,vol. 236, pp. 155- 164 ,(2004) , 10.1016/J.APSUSC.2004.04.017
M.S. Morad, A.M. Kamal El-Dean, 2,2′-Dithiobis(3-cyano-4,6-dimethylpyridine): A new class of acid corrosion inhibitors for mild steel Corrosion Science. ,vol. 48, pp. 3398- 3412 ,(2006) , 10.1016/J.CORSCI.2005.12.006
E.S Ferreira, C Giacomelli, F.C Giacomelli, A Spinelli, Evaluation of the inhibitor effect of l-ascorbic acid on the corrosion of mild steel Materials Chemistry and Physics. ,vol. 83, pp. 129- 134 ,(2004) , 10.1016/J.MATCHEMPHYS.2003.09.020
Ashish Kumar Singh, M.A. Quraishi, Effect of 2,2′ benzothiazolyl disulfide on the corrosion of mild steel in acid media Corrosion Science. ,vol. 51, pp. 2752- 2760 ,(2009) , 10.1016/J.CORSCI.2009.07.011
G. Schmitt, Chemical inhibitors for corrosion control British Corrosion Journal. ,vol. 27, pp. 24- 25 ,(1992) , 10.1179/000705992798268837
E. McCafferty, Norman Hackerman, Double Layer Capacitance of Iron and Corrosion Inhibition with Polymethylene Diamines Journal of The Electrochemical Society. ,vol. 119, pp. 146- 154 ,(1972) , 10.1149/1.2404150
Sudhish Kumar Shukla, Ashish Kumar Singh, Ishtiaque Ahamad, M.A. Quraishi, Streptomycin: A commercially available drug as corrosion inhibitor for mild steel in hydrochloric acid solution Materials Letters. ,vol. 63, pp. 819- 822 ,(2009) , 10.1016/J.MATLET.2009.01.020
G. Moretti, G. Quartarone, A. Tassan, A. Zlngales, 5-Amino- and 5-chloro-indole as mild steel corrosion inhibitors in 1 N sulphuric acid Electrochimica Acta. ,vol. 41, pp. 1971- 1980 ,(1996) , 10.1016/0013-4686(95)00485-8
A. Yurt, A. Balaban, S.Ustün Kandemir, G. Bereket, B. Erk, Investigation on some Schiff bases as HCl corrosion inhibitors for carbon steel Materials Chemistry and Physics. ,vol. 85, pp. 420- 426 ,(2004) , 10.1016/J.MATCHEMPHYS.2004.01.033