Abstract: The electrochemical behavior of the Mo₂C  catalyzing ORR was studied via cyclic voltammetry and linear scanning voltammetry. Experimental results show that Mo₂C  has significant catalysis on ORR and the catalytic effect is enhanced with the increase of the load. When 2 g/L glucose solution was as anodic fuel, the MFC with 6 mg/cm² Mo₂C delivering power density of 1.95 W/m³ produced 81.5% as much power density as the MFC using Ptcatalyst cathode, and 56.3% as much power density as the MFC using Ptcatalyst cathode and anode under the same conditions.

Key words: Mo₂C ; microbial fuel cell(MFC); cathodic catalyst; oxygen reducing reaction