| Summary: | 碩士 === 國立宜蘭大學 === 化學工程與材料工程學系碩士班 === 102 === It is must be overcome the carbon monoxide poisoning of direct methanol fuel cell (DMFC) all along. In general, adding the second noble metal (ex: Ru, Pd, Co, Fe etc.) improved the anti-poisoning ability. Due to the low kinetic to catalyze methanol and high cost to synthesis, DMFC is still difficult to commercialization.
In this study, we used the commercial graphene as the substrate. In order to improve the aqueous solubility of the graphene, acid oxidation treated it. After acid functionalized, graphene were coated with the polypyrrole (PPy) and polythiophene (PT). Expecting the synergistic effect between the graphene and conductive polymers can generate more Pt-(OH)ads and then provide platinum to covert CO into CO2. In the result, PPy and PT increased the anti-poisoning ability and endurance of the platinum. Finally, we investigated the relationship of the weight ratio between the graphene and conductive polymers for generating electricity.
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