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.
TY - 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 . .
