High-capacity, low-temperature, passive NOx and cd adsorbers and methods for making same
US11071966B2 · kind B2 · utility
1Cited by
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17Claims
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Key dates
| Filing date | Aug 21, 2019 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Dec 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/502
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed are passive NOx adsorbers and methods for synthesizing the same. Small-pore zeolitic materials with practical loadings of transition metals atomically dispersed in the micropores are described herein. Also demonstrated are simple and scalable synthesis routes to high loadings of atomically dispersed transition metals in the micropores of a small-pore zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.