Patent ID: 8404610
Filing Date: 2013-03-26
Classification: B01J,H01M,Y02E,Y02P

Abstract:
1. A process for producing a fuel cell catalyst comprising a metal-containing oxycarbonitride, which process comprises a grinding step for grinding the metal-containing oxycarbonitride using a ball mill, wherein: the metal-containing oxycarbonitride is represented by a compositional formula MC balls in the ball mill have a diameter of 0.1 to 1.0 mm; the grinding time using the ball mill is 1 to 45 minutes; the rotating centrifugal acceleration in grinding using the ball mill is 2 to 20 G; the grinding using the ball mill is carried out in such a state that the metal-containing oxycarbonitride is mixed with a solvent containing no oxygen atom in the molecule; and when the ball mill is a planetary ball mill, the orbital centrifugal acceleration is 5 to 50 G.