초록 |
A one-dimensional , isothermal model for a direct methanol fuel cell (DMFC) is presented. This model accounts for the kinetics of the multi-step methanol oxidation reaction at anode and cathode. Diffusion and crossover of methanol are modeled and the mixed potential of the oxygen cathode due to methanol crossover is included. kinetic and diffusional parameters are estimated by comparing the model data from a 25 cm^2 DMFC. This semi-analytical model can be solved rapidly so that is suitable for inclusion in real-time system level DMFC simulations. |