ELECTRODE CATALYST FOR FUEL CELL AND METHOD OF PRODUCING ELECTRODE CATALYST FOR FUEL CELL

ELECTRODE CATALYST FOR FUEL CELL AND METHOD OF PRODUCING ELECTRODE CATALYST FOR FUEL CELL

An electrode catalyst for a fuel cell includes: a carbon support having a crystallite diameter of 2.0 nm to 3.5 nm at a carbon (002) plane, and having a specific surface area of 400 m2/g to 700 m2/g; and a catalyst metal containing platinum and a platinum alloy that are supported on the carbon suppo...

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Bibliographische Detailangaben
Hauptverfasser: HORI Akihiro, KATAOKA Mikihiro, NAGAMI Tetsuo, SUGATA Hiroyuki, NAGASHIMA Shinya
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:An electrode catalyst for a fuel cell includes: a carbon support having a crystallite diameter of 2.0 nm to 3.5 nm at a carbon (002) plane, and having a specific surface area of 400 m2/g to 700 m2/g; and a catalyst metal containing platinum and a platinum alloy that are supported on the carbon support, and having a crystallite diameter of 2.7 nm to 5.0 nm at a platinum (220) plane. A ratio of a peak height of a spectrum of the platinum alloy in a form of an intermetallic compound with respect to a peak height of a spectrum of platinum is 0.03 to 0.08. The spectrum of the platinum alloy and the spectrum of platinum are measured through X-ray diffraction.