Gas diffusion electrodes

Gas diffusion electrodes are composed of a porous catalyst layer which has been applied on carrier material. The catalyst layer, which conducts electrons, catalyses an electrochemical reaction between the liquid and the gaseous phase. Thus, gas, electrolyte and the catalyst must be contacted. It is the so-called three-phase boundary on which three aggregate states (solid, liquid, gaseous) are contacted.

Three-phase boundary of a gas diffusion electrode

Overview of the catalysts und their range of application

There are appropriate catalysts for different electrochemical conversions.