STUDY OF INHIBITION EFFECTS OF2-n-UNDECYLIMIDAZOLE ON COPPER IN 3%NaCl SOLUTION

J Chin Soc Corr Pro

2002, Vol. 22

Issue (4): 237-240 DOI:

Research Report

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STUDY OF INHIBITION EFFECTS OF2-n-UNDECYLIMIDAZOLE ON COPPER IN 3%NaCl SOLUTION

Daquan Zhang;Lixin Gao;Zhien Wang

上海电力学院;国家电力公司热力设备腐蚀与防护重点实验室

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Daquan Zhang; Lixin Gao; Zhien Wang. STUDY OF INHIBITION EFFECTS OF2-n-UNDECYLIMIDAZOLE ON COPPER IN 3%NaCl SOLUTION. J Chin Soc Corr Pro, 2002, 22(4): 237-240 .

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Abstract The inhibiting efficiency of 2-n-undecylimidazole(U DIM)for copper in 3%NaCl solution was investigated by electrochemical impedance s pectroscopy technique and potentiostatic polarization method.The results show th at UDIM suppress both cathodic and anodic corrosion reaction of copper.A remarka ble decrease in the protective effects of UDIM was observed because of the aggre gate formed by UDIM with the increasing of concentration.A new absorption with λmax=214 nm,which attribute to the adsorption of UDIM aggregates,was detected by UV-Visible Spectroscopy.

Key words: 2-n-undecylimidazole inhibition aggregates eletrochemi cal impedance spectroscopy potentiostatic pol

Received: 10 January 2001

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2002/V22/I4/237

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