Membrane Electrode Assembly (MEA) performance test study with Pd/C catalyst on gas flow rate and varied PEMFC stack temperature has been conducted. The making of Pd/C catalyst electrodes was carried out by the spraying method. MEA was characterized by Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) methods to obtain an ECSA value 442.54 g/cm2 and a conductivity value of…