US 7,507,687 B2
Electrocatalyst powders, methods for producing powder and devices fabricated from same
Toivo T. Kodas, Albuquerque, N. Mex. (US); Mark J. Hampden-Smith, Albuquerque, N. Mex. (US); Plamen Atanassov, Albuquerque, N. Mex. (US); Klaus Kunze, Half Moon Bay, Calif. (US); Paul Napolitano, Albuquerque, N. Mex. (US); Rimple Bhatia, Placitas, N. Mex. (US); David Dericotte, Albuquerque, N. Mex. (US); and Paolina Atanassova, Albuquerque, N. Mex. (US)
Assigned to Cabot Corporation, Boston, Mass. (US)
Appl. No. 10/297,528
PCT Filed Jun. 08, 2001, PCT No. PCT/US01/18565
§ 371(c)(1), (2), (4) Date Oct. 03, 2003,
PCT Pub. No. WO01/93999, PCT Pub. Date Dec. 13, 2001.
Application 10/297528 is a continuation in part of application No. 09/815380, filed on Mar. 22, 2001, granted, now 6,967,183.
Application 09/815380 is a continuation in part of application No. 09/589710, filed on Jun. 08, 2000, granted, now 6,753,108.
Application 09/589710 is a continuation in part of application No. 09/532917, filed on Mar. 22, 2000, granted, now 6,660,680.
Prior Publication US 2004/0072683 A1, Apr. 15, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/88 (2006.01); H01M 4/00 (2006.01); B01J 21/18 (2006.01); B01J 23/00 (2006.01); B01J 23/40 (2006.01); B01J 23/74 (2006.01); C22C 29/12 (2006.01); B05D 5/12 (2006.01)
U.S. Cl. 502—101  [502/182; 502/185; 429/40; 429/41; 429/42; 429/43; 429/44; 75/233; 427/115] 134 Claims
OG exemplary drawing
 
1. A method for making an electrocatalyst powder batch, comprising the steps of:
a) providing a liquid-containing precursor composition to said electrocatalyst powder;
b) atomizing said liquid-containing precursor into precursor droplets;
c) heating said precursor droplets to a reaction temperature of not greater than about 700° C. to form electrocatalyst particles; and
d) collecting said electrocatalyst particles.