Patent ID: 8481224

Claim:
An anode for a direct methanol fuel cell comprising: an anode catalyst layer comprising a noble metal catalyst and a proton-conductive polyelectrolyte, a log differential pore volume distribution curve, as measured by a mercury intrusion porosimetry, of the anode catalyst layer, having a peak within a pore diameter range of 0.06 to 0.3 μm, and satisfying the following relationship: 0.5≦( V 1 /V 0 )≦0.9 wherein V 0 is a cumulative pore volume of pores having a diameter of from 0.02 to 1 μm, as measured by a mercury intrusion porosimetry, and V 1 is a cumulative pore volume of pores having a diameter of from 0.02 to 0.2 μm, as measured by a mercury intrusion porosimetry.