Improvement of protection performance of polypyrrole by dopant anions
Autor: | Le Minh Duc, Waldfried Plieth, Ursula Rammelt |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Journal of Applied Electrochemistry. 35:1225-1230 |
ISSN: | 1572-8838 0021-891X |
DOI: | 10.1007/s10800-005-9033-7 |
Popis: | Electropolymerization of pyrrole on mild steel was carried out in 0.01 m sodium molybdate and 0.1 m pyrrole solution at constant current 1.5 mA cm−2. The film is homogenous and adherent. The corrosion protection of polypyrrole films containing inhibitor anion molybdate as dopant anion was investigated with open circuit potential (OCP) in 0.1 m NaCl. The passivating effect of molybdate was demonstrated. The mobility of anion was investigated by cyclic voltammetry (CV), electrochemical quartz microbalance (EQCM) and electrochemical impedance spectroscopy (EIS) measurements. |
Databáze: | OpenAIRE |
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