Kinetics of the mild steel corrosion protection by polypyrrole-oxalate coating in sulfuric acid solution
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2006
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Kinetics of the mild steel corrosion protection in 0.1 mol dm(-3) H2SO4 by polypyrrole coatings have been investigated by the means of electrochemical impedance spectroscopy (EIS), cyclic voltammetry, polarization measurements and linear polarization. It has been concluded that during the initial time of immersion the coating resistance parameters increase which was connected with diffusion controlled dedoping of oxalate anions, simultaneously with hydrogen evolution reaction on polymer and dissolution of iron through polymer pores. Dedoping of oxalate anions from the bulk of the polymer decreases the polymer conductivity which provokes decrease of overall corrosion rate. After similar to 40 h, the completely dedoped PPy coating acts as a classical polymer.
Ključne reči:
electroconducting polymers / polypyrrole / oxalic acid / mild steel / corrosion protectionIzvor:
Progress in Organic Coatings, 2006, 56, 2-3, 240-247Izdavač:
- Elsevier Science Sa, Lausanne
Finansiranje / projekti:
- Modifikacija metalnih i nemetalnih materijala elektroprovodnim polimerima za primenu u novim tehnologijama (RS-MESTD-MPN2006-2010-142044)
DOI: 10.1016/j.porgcoat.2006.05.013
ISSN: 0300-9440
WoS: 000239476200022
Scopus: 2-s2.0-33745873502
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Grgur, Branimir AU - Živković, Predrag M. AU - Gvozdenović, Milica PY - 2006 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/955 AB - Kinetics of the mild steel corrosion protection in 0.1 mol dm(-3) H2SO4 by polypyrrole coatings have been investigated by the means of electrochemical impedance spectroscopy (EIS), cyclic voltammetry, polarization measurements and linear polarization. It has been concluded that during the initial time of immersion the coating resistance parameters increase which was connected with diffusion controlled dedoping of oxalate anions, simultaneously with hydrogen evolution reaction on polymer and dissolution of iron through polymer pores. Dedoping of oxalate anions from the bulk of the polymer decreases the polymer conductivity which provokes decrease of overall corrosion rate. After similar to 40 h, the completely dedoped PPy coating acts as a classical polymer. PB - Elsevier Science Sa, Lausanne T2 - Progress in Organic Coatings T1 - Kinetics of the mild steel corrosion protection by polypyrrole-oxalate coating in sulfuric acid solution EP - 247 IS - 2-3 SP - 240 VL - 56 DO - 10.1016/j.porgcoat.2006.05.013 ER -
@article{ author = "Grgur, Branimir and Živković, Predrag M. and Gvozdenović, Milica", year = "2006", abstract = "Kinetics of the mild steel corrosion protection in 0.1 mol dm(-3) H2SO4 by polypyrrole coatings have been investigated by the means of electrochemical impedance spectroscopy (EIS), cyclic voltammetry, polarization measurements and linear polarization. It has been concluded that during the initial time of immersion the coating resistance parameters increase which was connected with diffusion controlled dedoping of oxalate anions, simultaneously with hydrogen evolution reaction on polymer and dissolution of iron through polymer pores. Dedoping of oxalate anions from the bulk of the polymer decreases the polymer conductivity which provokes decrease of overall corrosion rate. After similar to 40 h, the completely dedoped PPy coating acts as a classical polymer.", publisher = "Elsevier Science Sa, Lausanne", journal = "Progress in Organic Coatings", title = "Kinetics of the mild steel corrosion protection by polypyrrole-oxalate coating in sulfuric acid solution", pages = "247-240", number = "2-3", volume = "56", doi = "10.1016/j.porgcoat.2006.05.013" }
Grgur, B., Živković, P. M.,& Gvozdenović, M.. (2006). Kinetics of the mild steel corrosion protection by polypyrrole-oxalate coating in sulfuric acid solution. in Progress in Organic Coatings Elsevier Science Sa, Lausanne., 56(2-3), 240-247. https://doi.org/10.1016/j.porgcoat.2006.05.013
Grgur B, Živković PM, Gvozdenović M. Kinetics of the mild steel corrosion protection by polypyrrole-oxalate coating in sulfuric acid solution. in Progress in Organic Coatings. 2006;56(2-3):240-247. doi:10.1016/j.porgcoat.2006.05.013 .
Grgur, Branimir, Živković, Predrag M., Gvozdenović, Milica, "Kinetics of the mild steel corrosion protection by polypyrrole-oxalate coating in sulfuric acid solution" in Progress in Organic Coatings, 56, no. 2-3 (2006):240-247, https://doi.org/10.1016/j.porgcoat.2006.05.013 . .