Kinetics of Electrode Reactions Occurring on Porous Iron Electrodes in Alkaline Media.

The kinetics of iron and hydrogen electrode reactions occurring on porous alkaline iron electrodes have been studied with the help of steady state and transient galvanostatic polarisation. Galvanostatic transients of porous iron electrodes in the linear polarisation regime have been analysed quantitatively, accounting for the charge-transfer and ohmic components of iron electrode reactions as well as the charge-transfer component of the hydrogen evolution reaction. These data, as also the volume of hydrogen evolved during these experiments, substantiate the catalytic effects of ferrous sulphide additives.