Electrochemical Activity and Electrical Properties of Optimized Polypyrrole Coatings on Iron

Karolina Cysewska; Sannakaisa Virtanen; Piotr Jasiński

doi:10.1149/2.0821512jes

Electrochemical Activity and Electrical Properties of Optimized Polypyrrole Coatings on Iron

Abstract

In this work, electrochemical activity and electrical properties of polypyrrole (PPy) coated iron electrodes have been investigated. PPy film was electrochemically polymerized from sodium salicylate aqueous solution under conditions, which provided an increase of iron corrosion resistance. It was noticed that the pH of the solution and the applied electrode potential range during the study of the polymer properties had an influence on the observed electroactivity of PPy. The electroactivity of PPy was retained in neutral solution when the potential was scanned between −0.6 and 0.3 V. Also the resistance behavior of the synthesized polymer film as a function of the electrode potential during doping/dedoping processes was studied. Determination of the resistance was based on the impedance spectroscopy measurements and was performed in air, in order to avoid the influence of the solution resistance on the resistance of the studied polymer. Depending on the redox properties, the pH of solution and the potential range, different resistances of the polymer film during the doping/dedoping process can be obtained.

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Authors (3)

Karolina Cysewska dr inż.
Sannakaisa Virtanen Prof.
- Department of Materials Science .
Piotr Jasiński prof. dr hab. inż.

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DOI:: Digital Object Identifier (open in new tab) 10.1149/2.0821512jes
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Details

Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: JOURNAL OF THE ELECTROCHEMICAL SOCIETY no. 162, pages 307 - 313,
ISSN: 0013-4651
Language:: English
Publication year:: 2015
Bibliographic description:: Cysewska K., Virtanen S., Jasiński P.: Electrochemical Activity and Electrical Properties of Optimized Polypyrrole Coatings on Iron// JOURNAL OF THE ELECTROCHEMICAL SOCIETY. -Vol. 162, nr. 12 (2015), s.307-313
DOI:: Digital Object Identifier (open in new tab) 10.1149/2.0821512jes
Verified by:: Gdańsk University of Technology