Composite preparations (TiO2/C, V2O5/C, SnO2/C) and their application to Direct Methanol Fuel Cells (DMFC) have been carried out. Carbon sheets were made from gelam bark powder and then hydrothermally and pyrolyzed, while carbon ribbons are made from reduced carbon sheets. The results of the carbon was made into electrodes. The electrodes were characterized using the Cyclic Voltammetry (CV) met…