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Electrochemical Behavior of Nickel in Caustic Solution and in the Presence of Chlorine Derivatives
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DOR
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20.1001.2.9919199705.1399.11.1.333.8
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نویسنده
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- - ,- -
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منبع
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كنگره مهندسي شيمي - 1399 - دوره : 11 - یازدهمین کنگره بین المللی مهندسی شیمی - کد همایش: 99191-99705
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چکیده
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Corrosion behavior of nickel in caustic soda (naoh) solution in the presence of chloride and hypochlorite ions was studied# open circuit potential (ocp), potentiodynamic polarization and electrochemical impedance spectroscopy (eis) were conducted to characterize the corrosion behavior of nickel electrode# it was found that the chloride ions could not show a tangible effect on the electrochemical behavior of the nickel; however, a higher corrosion rate of nickel in the caustic solution containing hypochlorite was seen compared to that in the caustic without any chlorine-derived components# eis measurement showed the polarization resistance of 82 kω cm2 for nickel in the caustic solution while this value dropped to 0#7 kω cm2 in hypochlorite/caustic solution#
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کلیدواژه
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Corrosion ,Caustic Soda ,Nickel ,Chlorine
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آدرس
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Amirkabir University Of Technology (Tehran Polytechnic), Iran, Amirkabir University Of Technology (Tehran Polytechnic), Iran
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Authors
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