Perovskite-related layered oxides containing interspathic polymeric oxide
US4980333A · kind A · utility
9Cited by
7References
10Claims
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Key dates
| Filing date | Jul 5, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Jul 5, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/525
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Perovskite related materials of high thermal stability and surface area which contain interspathic polymeric chalcogenides such as polymeric silica are prepared by ion exchanging a layered metal oxide, such as layered titanium oxide, with organic cation, to spread the layers apart. A compound such as tetraethylorthosilicate, capable of forming a polymeric oxide, is thereafter introduced between the layers. The resulting product is treated to form polymeric oxide, e.g. by hydrolysis, to produce the layered oxide material. The resulting product may be employed as catalyst material in the conversion of organic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.