Role of supporting electrolyte on the corrosion performance of poly(carbazole) films deposited on stainless steel

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• 作者：Berrin Duran ; ?rem ?akmakc? ; G?zen Bereket
• 关键词：A. Stainless steel ; B. Cyclic voltammetry ; B. EIS ; C. Acid corrosion ; C. Polymer coatings
• 刊名：Corrosion Science
• 出版年：2013
• 出版时间：December, 2013
• 年：2013
• 卷：77
• 期：Complete
• 页码：194-201
• 全文大小：1763 K

文摘

This work presents a comparative study of supporting electrolyte effect on the protection ability of poly(carbazole) films deposited on 304 stainless steel. Tetrabutylammonium, sodium and lithium perchlorate salts were used as supporting electrolyte in the investigation. Poly(carbazole) films were synthesized by electropolymerization of carbazole using cyclic voltammetry from acetonitrile medium containing monomer and supporting electrolyte. Protective properties of poly(carbazole)s were investigated in 1 M H₂SO₄ solution using E_ocp-t curves, Tafel polarization and electrochemical impedance spectroscopy. Corrosion test results revealed that supporting electrolyte affects conductivity of deposited films. Poly(carbazole) synthesized from tetrabutylammonium perchlorate exhibited better protection performance than the other poly(carbazole)s.