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Differentiating between the diffusion of water and ions from aqueous electrolytes in organic coatings using an integrated spectro-electrochemical technique

Tijdschriftbijdrage - Tijdschriftartikel

In this work, the separate diffusion of water and ions through a polyethylene glycol diacrylate (PEGDA) coating was characterized using an integrated spectro-electrochemical technique. The ions ingress front position profile along the thickness of the coating was derived from fitting odd random phase electrochemical impedance spectroscopy (ORP-EIS) data using a physically relevant electrochemical equivalent circuit (EEC). The arrival time of the ions at the coating/metal oxide buried interface obtained from EEC and rapid uptake of water was verified using in situ attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) measurements in Kretschmann geometry integrated in the ORP-EIS set-up.

Tijdschrift: Corrosion
ISSN: 0010-938X
Volume: 212
Jaar van publicatie:2023
Trefwoorden:ATR-FTIR in Kretschmann geometry, Buried interfaces, Ion diffusion, Organic coatings, ORP-EIS, Spectro-electrochemical technique
  • WoS Id: 000916223200001
  • ORCID: /0000-0002-6899-1301/work/135080273
  • DOI: https://doi.org/10.1016/j.corsci.2022.110919
  • ORCID: /0000-0002-3456-0271/work/135085318
  • ORCID: /0000-0002-9966-4493/work/135085944
  • ORCID: /0000-0001-7861-5281/work/135089351