ELECTRODE CATALYST, METHOD FOR PRODUCING SAME, AND FUEL CELL

An electrode catalyst includes a mesoporous carbon support having pores, and catalyst metal particles supported in at least some of the pores of the support. The catalyst metal particles are constituted by an alloy of platinum and at least one transition metal selected from Groups 3 to 12 elements o...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	FUJINO, Takaaki, SATO, Jun, KOMANOYA, Tasuku, NAKAHARA, Yuunosuke, KITABATAKE, Takuya
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ELECTRICITY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR RELEVANT APPARATUS TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An electrode catalyst includes a mesoporous carbon support having pores, and catalyst metal particles supported in at least some of the pores of the support. The catalyst metal particles are constituted by an alloy of platinum and at least one transition metal selected from Groups 3 to 12 elements of the periodic table. An average degree of alloying of the electrode catalyst calculated by Equation (1) below is 40% or more. A ratio r/R of a mean particle size r of the catalyst metal particles to a modal pore size R of the mesoporous carbon support is from 0.20 to 0.95. Degree (%) of alloying = [lattice constant of alloy calculated from XRD - lattice constant of platinum] / [theoretical value of lattice constant of alloy - lattice constant of platinum] × 100