Ion adsorption of oxide layers to hinder catalyst sintering
US10562017B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jan 8, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalysts that are resistant to high-temperature sintering and methods for preparing such catalysts that are resistant to sintering at high temperatures are provided. The catalyst may be prepared by contacting a solution comprising an ionic species with one or more charged surface regions of a catalyst support. A surface of the catalyst support further includes one or more catalyst particles disposed adjacent to the one or more charged surface regions. The ionic species has a first charge opposite to a second charge of the one or more charged surface regions. Next, the ionic species is associated with the one or more charged surface regions to form a layer on the one or more select surface regions. The layer is calcined to generate a coating comprising metal oxide on the one or more select surface regions, where the coating is formed adjacent to the one or more catalyst particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.