Passive direct methanol fuel cells fed with methanol vapor

Effect of anode current collector on the performance of passive direct methanol fuel cells

“…Similar opinions about the effect of methanol concentration on the performance of passive DMFC could also be found in the literature [9][10][11][12][13]. The utilizations of highly concentrated fuel of DMFCs with vapor fed had also been reported [14,15]. Chen et al reported a suitable MEA for DMFC [16,17] and optimized the flow-fields [7,18].…”

A crack-free and super-hydrophobic cathode micro-porous layer for direct methanol fuel cells

“…For this reason, vapor-feed fuel supply was proposed, which helps to achieve the neat methanol operation and meanwhile control the rate of methanol crossover [7][8][9]. Water management is extremely important for vapor-feed DMFCs, since no water is supplied from the anode fuel tank, water produced at the cathode must be passively transported to the anode to supply the required water for the anodic methanol oxidation reaction (MOR) [10][11][12][13][14].…”

Development of a Self‐Adaptive Direct Methanol Fuel Cell Fed with 20 M Methanol

“…Based on the optimized DMFC structure, a passive DMFC fed with 20 M methanol exhibits a peak power density of 42 mW cm -2 at 25°C, and no obvious performance degradation after over 90 h continuous operation at a constant current density of 40 mA cm -2 . [12][13][14][15][16]. Therefore, in order to take advantage of the high energy density of methanol, high concentration methanol should be stored in the fuel cartridge and in the meantime, the methanol concentration should be diluted to an appropriate level at the aCL [17,18] when the passive DMFC works.…”