Test on the electrolysis of water using Membrane Electrode Assembly (MEA) with TiO2/C catalyst on current and loading catalyst varied has been done. Electrode is characterized by Cyclic Voltametry (CV) and Electrode Impedance Spectroscopy (EIS). The characterization of electrode using this CV method showed that the biggest value of Electrochemical Surface Area (ECSA) was shown by TiO2/C electro…