Inorganic material that has metal nanoparticles that are trapped in a mesostructured matrix
US8226740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Mar 20, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An inorganic material that consists of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles that are between 1 and 300 nm in size and a mesostructured matrix with an oxide base of at least one element X that is selected from the group that consists of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium is described, whereby said matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 μm. Said material can also contain zeolitic nanocrystals that are trapped within said mesostructured matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.