Catalyst and method for its manufacture
US7208437B2 · kind B2 · utility
5Cited by
16References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2005 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Jan 25, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst is synthesized by a method in which a catalytic metal such as platinum or another noble metal is dispersed onto a support member. A transition metal macrocycle is also adsorbed onto the support, and the support is heat treated so as to at least partially pyrolyze the macrocycle and anchor the transition metal to the support. The catalytic metal is alloyed with the transition metal either during the pyrolysis step, or in a separate step. The catalyst has significant utility in a variety of applications including use as an oxygen reduction catalyst in fuel cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.