Lanthanide-doped layered double hydroxides and method of producing same
US11896968B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 21, 2018 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Jan 27, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure relates to a method for producing lanthanide doped layered double hydroxides (Ln-doped LDHs). The method includes the steps of preparing a carbonate free alkaline solution; preparing a solution of metal salts comprising a salt of a lanthanide; co-precipitating the alkaline solution and the solution of metal salts to form a mixture and Ln-doped LDH precipitate wherein the pH of the mixture is maintained at a constant value; aging the precipitate; and separating the precipitate from the solution. The alkaline solution is an aqueous ammonia solution. The present disclosure is also related to lanthanide-doped layered double hydroxides (La-doped LDHs) obtainable by such a method, as well as to the use of the lanthanide-doped layered double hydroxides obtainable by such a method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.