Heat treatment method for a carbon-supported metal catalyst for fuel cells and a carbon-supported metal catalyst prepared thereby
US11183695B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jun 7, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Sep 2, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heat treatment method performed to form a particle structure of a carbon-supported metal catalyst includes preparing the carbon-supported metal catalyst by supporting metals on a support including carbon. The heat treatment method also includes applying heat shock to the carbon-supported metal catalyst. The applying heat shock to the carbon-supported metal catalyst includes raising a temperature of the carbon-supported metal catalyst to a first temperature and lowering the temperature of the carbon-supported metal catalyst to a second temperature. A difference between the first temperature and the second temperature is 500° C. to 1,100° C. The applying heat shock to the carbon-supported metal catalyst is repeated at least once. A carbon-supported metal catalyst is prepared by the heat treatment method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.