  A one dimensional (1-D), 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 the anode. 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 to data from a 25 cm2 DMFC. This semi-analytical model can
be solved rapidly so that it is suitable for inclusion in real-time system
level DMFC simulations.
