Use the Thin H2 Gas Diffusion Electrode or the Thin O2 Gas Diffusion Electrode nodes to define a thin gas diffusion electrode located at a boundary between an Electrolyte Phase, an Electronic Conducting Phase and a Gas Phase node.

The volumetric current density and corresponding mass sources/fluxes of the Thin Gas Diffusion Electrode Reaction subnodes are multiplied by the Electrode Thickness parameter, and applied as a boundary conditions.