Avgouropoulos, G.G.AvgouropoulosSchlicker, SebastianSebastianSchlickerSchelhaas, Karl-PeterKarl-PeterSchelhaasPapavasiliou, J.J.PapavasiliouPapadimitriou, K.D.K.D.PapadimitriouTheodorakopoulou, E.E.TheodorakopoulouGourdoupi, N.N.GourdoupiMacHocki, A.A.MacHockiIoannides, T.T.IoannidesKallitsis, J.K.J.K.KallitsisKolb, GuntherGuntherKolbNeophytides, S.S.Neophytides2022-03-052022-03-052016https://publica.fraunhofer.de/handle/publica/24414710.1016/j.jpowsour.2016.01.029A proof-of-concept 70 W Internal Reforming Methanol Fuel Cell (IRMFC) stack including Balance-of-Plant (BoP) was designed, assembled and tested. Advent TPS® high-temperature, polymer electrolyte membrane electrode assemblies were employed for fuel cell operation at 200 °C. In order to avoid phosphoric acid poisoning of the reformer, the anode electrocatalyst of each cell was indirectly adjoined, via a separation plate, to a highly active CuMnAlOx catalyst coated onto copper foam, which served as methanol reforming layer. The reformer was in-situ converting the methanol/steam feed to the required hydrogen (internal reforming concept) at 200 °C, which was readily oxidized at the anode electrodes. The operation of the IRMFC was supported through a number of BoP components consisting of a start-up subsystem (air blower, evaporator and monolithic burner), a combined afterburner/evaporator device, methanol/water supply and data acquisition units (reactants/products analysis, temperature control, flow control, system load/output control). Depending on the composition of the liquid MeOH/H2O feed streams, current densities up to 0.18 A cm−2 and power output up to 70 W could be obtained with remarkable repeatability. Specific targets for improvement of the efficiency were identified.enhigh temperaturePEMfuel cellshydrogeninternal reformingsteam reforming621journal article