ZnO-Pd composite catalyst and production method thereof
US6099695A · kind A · utility
2Cited by
8References
3Claims
0Family size
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Key dates
| Filing date | Aug 13, 1997 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Aug 13, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A ZnO--Pd composite catalyst wherein Pd is dispersed and fixed on the surface of ZnO is produced by ion adsorption process having the steps of soaking ZnO in an acid solution of Pd to adsorb Pd ions (Pd.sup.2+) onto the surface of ZnO; and reducing the adsorbed Pd ions to metallic Pd particles so that the metallic Pd particles are substantially evenly deposited on the surface of ZnO. The ZnO--Pd composite catalyst provides a stable and continuing CO oxidizing capability, without light irradiation, even when the air to be treated contains sulfur compounds such as H.sub.2 S and SOx.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.