In-situ experimental characterization of the clamping pressure effects on low temperature polymer electrolyte membrane electrolysis

Higher Pc has shown higher cell performance this refers to lower ohmic and activation resistances. Water crossover from anode to cathode is slightly decreased at higher Pc resulting in a slight decrease in hydrogen crossover from cathode to anode. Also, the percentage of hydrogen in the produced oxygen at the anode side is significantly reduced at higher Pc and at lower current density.