This project investigates the effect of temperature on the performance of a DMFC using two different types of commercially available MEAs: Nafion®117-based and Celtec®-P 1000 PBI-based. With various methanol feed concentrations, the Nafion®-based MEA operated between 20 and 80°C with liquid feed, while the PBI-based MEA operated between 160 and 180°C with vapor feed. Results showed that the DMFC performance increased with temperature. However, at higher temperatures, methanol crossover became more prevalent at higher feed concentrations and thus reduced performance.
Worcester Polytechnic Institute
Major Qualifying Project
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