Cathodic oxygen reduction kinetics at an organic coating/iron interface using a combined hydrogen permeation based potentiometry and electrochemical impedance spectroscopy technique
Source abstract
Abstract
A recently developed hydrogen permeation based potentiometry and electrochemical impedance spectroscopy (HPP-EIS) technique has been successfully implemented for quantification of the initial progress of oxygen reduction reaction (ORR) at an industrial metal, Fe (100 nm) deposited on a Pd membrane. Captured ORR current-potential I(U) curve using HPP-EIS technique well matches with a conventional linear sweep voltammogram on Fe(100 nm)|Pd validating the correct measurement by this approach. The I(U) curve for ORR at an interface of model poly(methyl methacrylate) (PMMA)/Fe(100 nm) on Pd was derived with the corresponding EIS spectra showing two-time constants for the PMMA coating and interfacial ORR kinetics.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Fuel Cells and Related Materials · Electrochemical Analysis and Applications
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References (44)
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