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An Electrochemical Study on the Corrosion Inhibition of Stainless Steel by Polyaniline Film
作者姓名:HaoWANG  QiuHongLI  SuXiangWU  FengHuaWEI
作者单位:[1]SchoolofChemistryandChemicalEngineering,ShandongUniversity,Jinan250100 [2]ShandongAnalysisandTestCenter,Jinan250014
摘    要:Polyaniline(PANI)film was electrosynthesized on 304 stainless steel by cyclic voltammetry using aqueous oxalic acid as supporting electrolyte.The potential sweep rates were changed to achieve the PANI film with different thickness and structures.Protective properties of the PANI film for corrosion of stainless steel in 3% NaC1 aqueous solution were investigated by monitoring potentiodynamic polarization curves and electrochemical impedance spectroscopy(EIS).The results showed that the PANI film which was formed with lower sweep rate led to more positive shift of corrosion potential and greater charge transfer resistance,reflecting higher inhibition for corrosion of the stainless steel.

关 键 词:聚苯胺  电化学研究  不锈钢  腐蚀抑制

An Electrochemical Study on the Corrosion Inhibition of Stainless Steel by Polyaniline Film
HaoWANG QiuHongLI SuXiangWU FengHuaWEI.An Electrochemical Study on the Corrosion Inhibition of Stainless Steel by Polyaniline Film[J].Chinese Chemical Letters,2004,15(4):486-488.
Authors:Hao WANG  Lin NIU  Qiu Hong LI  Su Xiang WU  Feng Hua WEI School of Chemistry and Chemical Engineering  Shandong University  Jinan Shandong Analysis and Test Center  Jinan
Institution:Hao WANG,Lin NIU,Qiu Hong LI,Su Xiang WU,Feng Hua WEI School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100 Shandong Analysis and Test Center,Jinan 250014
Abstract:Polyaniline (PANI) film was electrosynthesized on 304 stainless steel by cyclic voltammetry using aqueous oxalic acid as supporting electrolyte. The potential sweep rates were changed to achieve the PANI film with different thickness and structures. Protective properties of the PANI film for corrosion of stainless steel in 3% NaCl aqueous solution were investigated by monitoring potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). The results showed that the PANI film which was formed with lower sweep rate led to more positive shift of corrosion potential and greater charge transfer resistance, reflecting higher inhibition for corrosion of the stainless steel.
Keywords:Corrosion inhibition  stainless steel  polyaniline film  electrochemical study  
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