US 7,479,343 B2
	Platinum-indium-iron/tungsten/manganese fuel cell electrocatalyst
Martin Devenney, Mountain View, Calif. (US); Alexander Gorer, San Jose, Calif. (US); Peter Strasser, Mountain View, Calif. (US); Ting He, Dublin, Ohio (US); Hiroyuki Oyanagi, Utsunomiya (Japan); Daniel M. Giaquinta, Mountain View, Calif. (US); Qun Fan, Fremont, Calif. (US); and Konstantinos Chondroudis, Sunnyvale, Calif. (US)
Assigned to Symyx Technologies, Inc., Santa Clara, Calif. (US); and Honda Giken Kogyo Kabushiki Kaisha, Tokyo (Japan)
Filed on May 19, 2004, as Appl. No. 10/849,291.
Claims priority of provisional application 60/473565, filed on May 27, 2003.
Prior Publication US 2005/0037920 A1, Feb. 17, 2005 Prior Publication US 2006/0019825 A2, Jan. 26, 2006
Int. Cl. H01M 4/86 (2006.01)

U.S. Cl. 429—40  [502/314; 502/313; 502/332; 502/326; 502/325; 502/324; 502/305]

16 Claims

1. A catalyst for use in oxidation or reduction reactions, the catalyst comprising platinum in a concentration between about 5 and about 65 atomic percent, indium in a concentration between about 5 and about 80 percent, and at least one of tungsten, iron, and manganese wherein tungsten, iron, manganese, or a combination thereof is at a concentration that is between about 10 and about 85 atomic percent.