Supported noble metal nanometer catalyst particles containing controlled (111) crystal face exposure
US6746597B2 · kind B2 · utility
59Cited by
24References
59Claims
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Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Feb 6, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/392
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A noble metal nanometer-sized catalyst composition is described along with the method for preparation of the composition. The crystal face of the catalyst contains a preponderance of (111) type crystal phase exposure. The crystal phase exposure is controlled by sequestering the noble metal cation before deposition on a catalyst support. Controlled catalyst face exposition combined with the nanometer scale of the catalyst increases the catalyst selectivity and activity, particularly for hydrogenation and dehydrogenation reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.