| abstract |
Disclosed is a method for producing an electrode catalyst, which comprises a step wherein a precursor of the electrode catalyst is fired under the conditions where the second material described below is converted into a carbon material, said precursor of the electrode catalyst being obtained by subjecting a mixture of the first material and the second material described below to a continuous hydrothermal reaction in the presence of water that is in a supercritical or subcritical state. First material: a metal compound that is configured of one or more metal elements selected from the group consisting of group 4A elements and group 5A elements and one or more non-metal elements selected from the group consisting of hydrogen, nitrogen, chlorine, carbon, boron, sulfur and oxygen Second material: a carbon material precursor |