To provide a manufacturing method for a catalyst carrier for a direct oxidation type fuel battery which purposes the reduction of a use amount of white gold or the like and the improvement of corrosion resistance, can reduce a use amount of a catalyst metal in an electrode catalyst for the direct oxidation type fuel battery while keeping high performance by enhancing the activity of the carried catalyst metal, and can thereby reduce a cost of the electrode catalyst for the direct oxidation type fuel battery, and to provide the catalyst for the direct oxidation type fuel battery which can exhibit high performance even if the catalyst is low in catalyst metal content, and its manufacturing method.
This manufacturing method for the catalyst carrier for the direct oxidation type fuel battery includes: (a) a process of mixing a transition metal compound (1) and a nitrogen-containing organic compound (2) and obtaining a catalyst carrier precursor solution; (b) a process of removing a solvent from the catalyst carrier precursor solution; and (c) a process of heat-treating a solid component residue obtained in the preceding process (b) at temperatures of 500 to 1,100°C, and obtaining the catalyst carrier. The method is also characterized in that a part or the whole of the transition metal compound (1) contains a transition metal element M1 of a periodic table group 4 or a group 5 as a transition metal element, and at least one of the transition metal compound (1) and the nitrogen-containing organic compound (2) has an oxygen atom.
HORIKITA MASAKI
KADOTA RYUJI
YU CHUNFU
ABE SADANORI
WAKIZAKA YASUAKI
SATO TAKASHI
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