ACETYLENE BLACK, ITS PRODUCTION METHOD AND CATALYST FOR FUEL BATTERY

摘要

PROBLEM TO BE SOLVED: To provide acetylene black having the specific surface area of ≥500 m2/g and the crystal layer thickness (Lc) of ≥25 Å, and to provide a catalyst for a fuel battery having high reaction efficiency.

SOLUTION: In the acetylene black, the specific surface area is 500 to 1,100 m2/g, and the crystal layer thickness (Lc) measured by X-ray diffraction is 25 to 40 Å. In the method for producing acetylene black, gaseous acetylene is brought into incomplete combustion reaction after its water content is reduced to ≤5 mg/L by absolute humidity, and the obtained acetylene black is subjected to oxidation treatment. The catalyst for a fuel battery is obtained by carrying platinum particles and/or platinum alloy particles on the acetylene black.

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