Device for treating gases using microfabricated matrix of catalyst
US5688474A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Jan 27, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC40B40/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of microfabricating a matrix of evenly distributed catalytic articles, with the matrix then being used to treat reactants in a stream of gases. The matrix is created by depositing areas of conductive material on a nonconductive base wafer or substrate, and then depositing catalyst particles in electrical communication with the conductive material so that a series of localized electrical fields can be created upon the introduction of a power source. A dielectric material surrounding the catalyst particles can be altered by increasing the applied voltage, thereby increasing the strength of the electrical field. A device so constructed is placed in a stream of gases, and the localized electrical fields alter the selectivity and the reactivity of the reactants in the stream of gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.