Electrocatalyst compositions and processes for making and using same
US8252485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2007 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | May 6, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a method of producing a particulate electrocatalyst composition, a precursor medium comprising at least a first metal precursor, a liquid vehicle, and a substrate precursor to substrate particles is atomized into precursor droplets. The droplets are then heated to a reaction temperature of not greater than 700° C. to form composite particles comprising said first metal at least partly in an oxide form dispersed on said substrate particles. The composite particles are then collected and are heated at a first treatment temperature no greater than 250° C. in the presence of a reducing atmosphere to at least partly convert said oxide form to the metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.