Utilization of catalyst-coated membrane (CCM) and spraying methods in fabrication membrane electrode assembly (MEA) for direct methanol fuel Cell (DMFC) using Pt-Co / C catalyst

Abstract

Utilization of Catalyst-Coated Membrane (CCM) and Spraying Methods in fabrication of Membrane Electrode Assembly (MEA) for Direct Methanol Fuel Cell (DMFC) Using a varied Pt-Co/C catalyst has been carried out. The use of Pt-Co/C catalyst is intended to reduce the use of Pt catalysts in the electrode. Electrodes and MEAs of the two methods are characterized and tested for performance, both in open circuit voltage (OCV) and under load conditions. The MEA performance test results with the spraying method show that the best performance MEA is obtained at the ratio of Pt: Co = 60: 40, while with the CCM method, the best MEA is obtained at the ratio of Pt: Co = 40: 60. However, the power density of the spraying method in the best conditions is greater than the CCM method.