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Journal Article

Release mechanism of electrodeposited polypyrrole doped with corrosion inhibitor anions

MPS-Authors
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Paliwoda-Porebska,  Grażyna
Molecular Structure and Surface Modification, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Stratmann,  Martin
Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Rohwerder,  Michael
Molecular Structure and Surface Modification, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Citation

Paliwoda-Porebska, G., Stratmann, M., Rohwerder, M., Rammelt, U., Duc, L., & Plieth, W. J. (2006). Release mechanism of electrodeposited polypyrrole doped with corrosion inhibitor anions. Journal of Solid State Electrochemistry, 10(9), 730-736. doi:10.1007/s10008-006-0118-y.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-5C18-6
Abstract
Scanning Kelvin probe and electrochemical impedance spectroscopy were used to study the release behaviour of inhibitor anions doped in polypyrrole film (e.g. molybdate, 3-nitro salicylate). The polypyrrole coatings were formed on mild steel and zinc substrates in aqueous solution. It was shown that the release behaviour of the molybdate and 3-nitro salicylate anions depends on the size of cations in the electrolyte. The delamination is determined with the migration and incorporation of small cations.