Precious metal catalysts fabricated using reverse loading and metal shuttling
US12011707B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2022 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Dec 9, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2235/15
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst may include a base material, a precious metal, and a metal oxide. At least a portion of the precious metal may form catalytically active sites on a surface of the metal oxide. The catalytically active sites may be formed by depositing the precious metal on the base material to form a catalyst structure, performing a first calcination on the catalyst structure, depositing the metal oxide on the catalyst structure, wherein the precious metal is at least partially encapsulated by the metal oxide, performing a second calcination on the catalyst structure, and reducing the catalyst structure with a reductive material, where at least a portion of the precious metal diffuses to a surface of the metal oxide to form the catalytically active sites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.