Process for producing metallic-nanoparticle inorganic composite and metallic-nanoparticle inorganic composite
US7972539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2008 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Jul 17, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24413
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for producing a metallic-nanoparticle inorganic composite 10 includes an oxide film formation step in which an oxide film 14 having micropores is formed on a substrate by a sol-gel method in which a metal alkoxide is partly hydrolyzed by the action of an acid catalyst, a tin deposition step in which the oxide film 14 is brought into contact with an acidic aqueous solution of tin chloride, an excess Sn2+ ion removal step in which Sn2+ ions are removed from the micropores, a metallic-nanoparticle deposition step in which the oxide film 14 is brought into contact with an aqueous solution of a metal chelate to deposit metallic nanoparticles 12 in the micropores, and an excess metal ion removal step in which metal ions are removed from the micropores; and a metallic-nanoparticle inorganic composite 10 is produced by this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.