US 11,757,104 B2
Catalyst support materials for fuel cells
Soo Kim, Cambridge, MA (US); Jonathan Mailoa, Cambridge, MA (US); Mordechai Kornbluth, Brighton, MA (US); Lei Cheng, Sunnyvale, CA (US); Georgy Samsonidze, San Francisco, CA (US); Boris Kozinsky, Waban, MA (US); and Nathan Craig, Santa Clara, CA (US)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on May 2, 2022, as Appl. No. 17/734,558.
Application 17/734,558 is a division of application No. 16/591,032, filed on Oct. 2, 2019, abandoned.
Prior Publication US 2022/0263098 A1, Aug. 18, 2022
Int. Cl. H01M 4/90 (2006.01); H01M 4/88 (2006.01); H01M 4/92 (2006.01)
CPC H01M 4/9033 (2013.01) [H01M 4/8825 (2013.01); H01M 4/9075 (2013.01); H01M 4/921 (2013.01); H01M 4/925 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A catalyst support material for a proton exchange membrane fuel cell (PEMFC), the catalyst support material comprising:
a metal material of an at least partially oxidized form of TiNb3O6 reactive with H3O+, HF and/or SO3− to form reaction products in which the metal material of the at least partially oxidized form of TiNb3O6 accounts for a stable molar percentage of the reaction products.
 
11. A proton exchange membrane fuel cell (PEMFC) comprising:
a catalyst support material formed of a metal material of an at least partially oxidized form of TiNb3O6 reactive with H3O+, HF and/or SO3− to form reaction products in which the metal material of an at least partially oxidized form of TiNb3O6 accounts for a stable molar percentage of the reaction products; and
a catalyst supported on the catalyst support material.
 
19. A proton exchange membrane fuel cell (PEMFC) comprising:
a catalyst support material formed of a metal material of an at least partially oxidized form of TiNb3O6 reactive with H3O+, HF and/or SO3− to form reaction products in which the metal material of an at least partially oxidized form of TiNb3O6 accounts for a stable molar percentage of the reaction products; and
a catalyst film supported on the catalyst support material.