Catalyst for polymer electrolyte fuel cell and method for producing the same

The present invention relates to a catalyst for a solid polymer fuel cell, including platinum, cobalt, and zirconium supported as a catalytic metal on a carbon powder carrier, in which the supporting ratio of platinum, cobalt, and zirconium on the carbon powder carrier is Pt : Co : Zr = 3 : 0.5 to 1...

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Bibliographische Detailangaben
Hauptverfasser:	HASHIMOTO, WATARU, NAMAI, TATSUNORI, ISHIDA, MINORU, NAKAJIMA, HITOSHI, MATSUTANI, KOICHI, OKAYA, KAZUKI, KAIEDA, TAKESHI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The present invention relates to a catalyst for a solid polymer fuel cell, including platinum, cobalt, and zirconium supported as a catalytic metal on a carbon powder carrier, in which the supporting ratio of platinum, cobalt, and zirconium on the carbon powder carrier is Pt : Co : Zr = 3 : 0.5 to 1.5 : 0.1 to 3.0 by molar ratio. In the present invention, it is preferable that the peak position of PtCo seen in the X-ray diffraction pattern of catalyst particles is 2θ = 41.10° or more and 42.00° or less, and moderate alloying has occurred in the catalytic metal.