You are here
Smooth nickel - a suitable anodic material in new alkaline fuel cells sulphite/oxygen
Paper ID:
gnest_05374
Paper Status:
Published
Date Paper Submitted:
08-09-2023
Date Paper Accepted:
03-10-2023
Paper online:
12/12/2023
Visual abstract:
Abstract:
The anodic oxidation of sulphite ions was studied by voltammetric techniques on a nickel electrode in alkaline solution at various concentration of sulphite and polarization rate. The kinetic parameters of the electrode process have been determined using Tafel plots method and a mechanism of the electrochemical oxidation reaction of sulphite has been proposed. Current density, potential range of sulphite electro-oxidation and transformation degree of sulphite ions in the test solutions have been obtained by chronoamperometry and chronocoulometry. The sulphite oxidation mechanism on nickel electrode has been sustained by electrochemical impedance spectroscopy.
Keywords:
anodic sulphite oxidation, voltammetric techniques, electrochemical impedance spectroscopy, chrono-electrochemical methods, alkaline fuel cell
