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Electrochemical corrosion studies of Zn-CuO and Zn-NiO-CuO composite coatings on mild steel
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نویسنده
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deepa k. ,venkatesha t.v. ,nagaraja c. ,vinutha m.r.
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منبع
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analytical and bioanalytical electrochemistry - 2017 - دوره : 9 - شماره : 3 - صفحه:374 -389
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چکیده
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Copper oxide and nickel oxide-copper oxide (nio-cuo) metal oxide nanoparticles were prepared by co-precipitation method in aqueous solution using sodium hydroxide as precipitating agent and cetyl trimethyl ammonium bromide (ctab) as a surfactant. the particles were characterized by xrd,sem,eds and ftir analysis. the crystallite sizes of both metal oxide particles were in the nano range calculated by debye-scherrer equation. the prepared metal oxide nanoparticles were employed for the fabrication of zinc-composite coating on mild steel by electroplating and their corrosion behaviour was investigated by tafel and electrochemical impedance spectroscopy in corrosive media of 3.5% nacl solution. the surface morphology of coated steel articles and also their corrosion morphology have been characterized by scanning electron microscopic (sem) images. © 2017 by cee (center of excellence in electrochemistry).
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کلیدواژه
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Corrosion; Electrochemical impedance spectroscopy; NiO-CuO nanoparticles; Tafel; Zn-composite coating
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آدرس
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department of studies in chemistry,school of chemical sciences,kuvempu university,shankaraghatta,shimoga, India, department of studies in chemistry,school of chemical sciences,kuvempu university,shankaraghatta,shimoga, India, department of studies in chemistry,school of chemical sciences,kuvempu university,shankaraghatta,shimoga, India, department of studies in chemistry,school of chemical sciences,kuvempu university,shankaraghatta,shimoga, India
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Authors
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