Evaluation of inhibitive action of some quaternary N-heterocyclic compounds on the corrosion of Al–Cu alloy in hydrochloric acid
作者： Ehteram A. Noor
DOI: 10.1016/J.MATCHEMPHYS.2008.09.065
关键词:
摘要: Abstract The inhibitive action of some quaternary N-heterocyclic compounds namely 1-methyl-4[4′(-X)-styryl] pyridinium iodides (X: -H, -Cl and -OH)on the corrosion Al–Cu alloy in 0.5 M HCl solutions was evaluated by potentiodynamic polarization, electrochemical impedance spectroscopy weight loss measurements. All studied showed good characteristics against tested their performance increases with inhibitor concentration. Polarization data indicated that are cathodic inhibitors without changing mechanism hydrogen evolution reaction.The adsorption all on obeys Langmiur isotherm. effect temperature (30–70 °C) inhibition efficiency at certain concentration investigated. revealed have pickling inhibitor's quality as they perform well even relatively high temperature. activation parameters ( E a , Δ H *, S * G *) were estimated discussed. It found values for inhibited higher than uninhibited solution, indicating physical mechanism. acid s anion
elsevier.com
sci-hub.se 参考文章(34)
M. METIKOS˘-HUKOVIC´, R. BABIC´, Z. GRUBAC˘, Corrosion protection of aluminium in acidic chloride solutions with nontoxic inhibitors Journal of Applied Electrochemistry. ,vol. 28, pp. 433- 439 ,(1998) , 10.1023/A:1003200808093
Samuel Glasstone, TEXT-BOOK OF PHYSICAL CHEMISTRY Macmillan & Co. Ltd.. ,(1940)
M. Stern, A. L. Geaby, Electrochemical Polarization I . A Theoretical Analysis of the Shape of Polarization Curves Journal of The Electrochemical Society. ,vol. 104, pp. 56- 63 ,(1957) , 10.1149/1.2428496
E.A. Noor, The inhibition of mild steel corrosion in phosphoric acid solutions by some N-heterocyclic compounds in the salt form Corrosion Science. ,vol. 47, pp. 33- 55 ,(2005) , 10.1016/J.CORSCI.2004.05.026
M Abdallah, Antibacterial drugs as corrosion inhibitors for corrosion of aluminium in hydrochloric solution Corrosion Science. ,vol. 46, pp. 1981- 1996 ,(2004) , 10.1016/J.CORSCI.2003.09.031
Sayed S Abd El Rehim, Hamdi H Hassan, Mohammed A Amin, Corrosion inhibition study of pure Al and some of its alloys in 1.0 M HCl solution by impedance technique Corrosion Science. ,vol. 46, pp. 5- 25 ,(2004) , 10.1016/S0010-938X(03)00133-1
A.M. Abdel-Gaber, B.A. Abd-El-Nabey, I.M. Sidahmed, A.M. El-Zayady, M. Saadawy, Kinetics and thermodynamics of aluminium dissolution in 1.0M sulphuric acid containing chloride ions Materials Chemistry and Physics. ,vol. 98, pp. 291- 297 ,(2006) , 10.1016/J.MATCHEMPHYS.2005.09.023
M. Tschapek, C. Wasowski, R.M. Torres Sanchez, The p.z.c. and i.e.p. of γ-Al2O3 and TiO2 Journal of Electroanalytical Chemistry. ,vol. 74, pp. 167- 176 ,(1976) , 10.1016/S0022-0728(76)80232-X
I. Lukovits, E. Kálmán, F. Zucchi, Corrosion Inhibitors—Correlation between Electronic Structure and Efficiency Corrosion. ,vol. 57, pp. 3- 8 ,(2001) , 10.5006/1.3290328
V Branzoi, Florentina Golgovici, Florina Branzoi, Aluminium corrosion in hydrochloric acid solutions and the effect of some organic inhibitors Materials Chemistry and Physics. ,vol. 78, pp. 122- 131 ,(2003) , 10.1016/S0254-0584(02)00222-5