INFLUENCE OF OPERATING CONDITIONS ON THE PERFORMANCE OF AN ANION EXCHANGE MEMBRANE ELECTROLYSER

In this work, a FAA3-50 anion-exchange membrane (from FuMa-Tech) has been used, after exchange in KOH solution (1 M), as electrolyte/separator in a single cell of 5 cm2 geometrical area. In the first approach, commercial IrO2 and 40% Pt/C catalysts have been used at the anode and cathode, respectively, to evaluate the membrane under the most convenient conditions. The influence of cell temperature, membrane-electrode assembly (MEA) procedure (catalyst-coated membrane or catalyst coated electrode), ionomer content in the electrodes, use of pure water or KOH solution, on electrolyser performance have been analysed.