produced rapidly enough relative to the input air flow rate, the H2(g) could purge the O2(g) from the catalyst surface, ensuring maximum H2(g) production. The H2(g) will need to be separated from any O2(g) in the photocathode effluent downstream before the gases recombine to form water...
(g) carrier gas as the feedstock. FIG. 1B is a schematic diagram of a cross section of the electrolyzer under operation with liquid water as the feedstock. The product gases will form bubbles in liquid water, but bubble formation will be absent when water vapor is used as the electrolysis...