Inhibition of pyrite corrosion and photocorrosion by MEKF-R modified carbazoles

Belkis Ustamehmetoǧlu*, Esma Sezer, Nilgün Kizilcan, Pelin Yazici, Şebnem Tayyar, A. Sezai Saraç

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11 Atıf (Scopus)

Özet

In this study natural iron sulfide (FeS2) surface was coated by films of poly(N-vinylcarbazole) (PNVCz), poly(N-vinylcarbazole methylethylketoneformaldehyde resin) (P[NVCz-MEKF-R]), carbazole methylethylketone formaldehyde resin (Cz-MEKFR) and poly(carbazole methyl ethylketone formaldehyde resin) (P[Cz-MEKFR]). The corrosion, photocorrosion, and photoactivity characteristics of coated electrodes were investigated in potassium iodide/iodide (KI/I2) redox electrolyte. The inhibition effect and photoactivity of Cz-MEKF-R, P[Cz-MEKF-R] P[NVCz-MEKFR] and PNVCz homopolymer coatings were compared. Coating performance was tested by polarization and electrochemical impedance (EIS) measurements. The photopotential and photocurrent values of bare and coated pyrite electrodes were obtained under illuminated conditions. The inhibition efficiencies were calculated from corrosion currents obtained by Tafel extrapolation from polarization curves.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)533-540
Sayfa sayısı8
DergiProgress in Organic Coatings
Hacim76
Basın numarası4
DOI'lar
Yayın durumuYayınlandı - Nis 2013

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