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Acetylacetonate Complexes as New Corrosion Inhibitors in Phosphoric Acid Media: Inhibition and Synergism Study
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نویسنده
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Ghanbari A ,Attar M.M ,Mahdavian M
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منبع
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progress in color, colorants and coatings - 2009 - دوره : 2 - شماره : 2 - صفحه:115 -122
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چکیده
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The corrosion inhibition performance of acetylacetonate complexes of zinc(ii) . manganese(ii) , cobalt(ii) and copper(il) on the mild steel substrate in 1m h3po4. was studied using dc polarization. it was seen that the mentioned complexes decreased corrosion rate of mild steel in phosphoric acid media due to the adsorption on metal surface. the potential of mild steel shifted toward more active potentials. the cathodic tafel slopes increased showing that acetylacetonate complexes are cathodic inhibitors. presence of chloride ions in the electrolyte enhanced inhibition performance of acetylacetonate complexes due to synergism. chloride ions provided by hci had a better perform ance compared to naci.
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کلیدواژه
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Acetylacetonate complexes DC polarization Inhibitor Synergisrn effect
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آدرس
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amirkabir university of technology, Departments of Polymer Engineering, ایران, amirkabir university of technology, Departments of Polymer Engineering, ایران, Institute for Color Science and Technology, Department of Surface Coatings & Corrosion, ایران
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پست الکترونیکی
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attar@aut.ac.ir
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Authors
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