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Research Paper | Chemical Engineering | Egypt | Volume 3 Issue 4, April 2014
Study the Synergistic Inhibition for Nanocomposite Based on Biosynthesized Iron Nanoparticle and Purine Compounds on Steel Corrosion in Sulfuric Acid
Ahmed A. Farag  | W. Ahmed | Khaled Zakaria | Ibrahim M. Nassar
Abstract: Nanocomposite material based on Iron nanoparticles colloidal (FeNPC) and Purine were used through this work. (FeNPC) was biosynthesized and characterized by dynamic light scattering (DLS) and UV-visible spectroscopy. FeNPC was evaluated as synergistic inhibition with two purine inhibitors namely 1H-pyrazolo [3, 4-d]pyrimidin-4 (2H) -one (PU1) and 6- [ (1-methyl-4-nitro-5-imidazolyl) sulfanyl] purine (PU2) on the corrosion of carbon steel in 0.5 mol dm-3 H2SO4 solution by electrochemical techniques. The potentidynamic polarization curves indicated that PU1 and PU2 behave as a mixed-type inhibitor while in the presence of FeNPC and its mixture with PU1 and PU2 behave as a cathodic inhibitor. There is a synergism between purine inhibitors and the biosynthesis FeNPC, and the values of synergism parameter (S) are higher than unity.
Keywords: Metals, Nanostructures, Organic compounds, Electrochemical techniques, and Corrosion
Edition: Volume 3 Issue 4, April 2014,
Pages: 870 - 876
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