HYDROGEN OXIDATION CATALYST

The present invention is to provide a hydrogen oxidation catalyst that does not contain platinum. Disclosed is a hydrogen oxidation catalyst that is a dinuclear transition metal complex having a chemical structure represented by the following general formula (1) or (2): wherein, in the general formulae (1) and (2), Mand Mare each independently Fe or Ru; Arand Arare each independently a cyclopentadienyl group or a pentamethylcyclopentadienyl group; Arand Arare each independently a divalent aromatic hydrocarbon group having 6 to 12 carbon atoms; and Aris a monovalent aromatic hydrocarbon group having 6 to 12 carbon atoms, and in the general formula (2), Rand Rare each independently a hydrogen atom or a monovalent aliphatic hydrocarbon group having 1 to 3 carbon atoms.