Chinese Journal of Catalysis ›› 2009, Vol. 30 ›› Issue (4): 319-322.

• Articles • Previous Articles     Next Articles

Preparation and Mechanism Analysis of Molybdenum Carbide-Based Catalyst for Fuel Cell Cathode Reaction

ZHANG Dongyun1, WU Xi1, MA Zifeng1,*, Levi T. THAMPSON2   

  1. 1Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
  • Received:2009-04-25 Online:2009-04-25 Published:2013-01-21

Abstract: Mo2C/VC was used as the oxygen reduction electrocatalyst for proton exchange membrane fuel cells. The cyclic voltammetry results showed three reversible redox peaks at 0.34, 0.45, 0.55 V, respectively. Its electrocatalytic activity for oxygen reduction was attributed to the redox of surface passivated species (MoOxCy and MoOz) and the migration of oxygen in Mo2C crystal lattice.

Key words: molybdenum carbide, oxygen reduction, electrocatalyst, fuel cell