Microfluidic direct methanol fuel cell (DMFC) overcome some key issues- fuel crossover and water management - that typically hampers conventional polymer electrolyte-based fuel cells. Here we report a method to further minimize fuel crossover in microfluidic DMFC. First, a polymer separator at the interface of the fuel and electrolyte streams in a single-channel microfluidic DMFC to reduce the cross-sectional area across which methanol can diffuse. Maximum power densities of 6.8 mW cm−2 were obtained with a separator with when using 2 M methanol. This simple design improvement reduces loss at the cathode leading to better performance.
Polymer separator to minimize crossover in microfluidic direct methanol fuel cells
01.08.2014
473246 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Measurement of methanol crossover in direct methanol fuel cell
Online Contents | 2001
|Measurement of methanol crossover in direct methanol fuel cell
Kraftfahrwesen | 2001
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