Characterization of Composite Membranes for Direct Methanol Fuel Cell

摘要

The nano-composite membranes were produced by direct melt intercalation of Nafion resin (perfluorosulfonylfluoride copolymer resin) into the modified montmorillonite (m-MMT) which was organized by dodecylamine. The MEA (Membrane-Electrode Assembly) has been made using hot pressing method, and the electrode prepared using PtRu black and Pt black catalysts for anode and cathode, respectively. The nano-composite membranes were analyzed using by XRD. The thermal and mechanical properties of those membranes were also investigated, and the methanol permeability was measured by gas chromatography (GC). The performance of MEA using the nano-composite membrane was evaluated by single cell test. The results show that the performance of MEA using the nano-composite membrane was higher than that of commercial Nafion membrane at high operating temperature.