Water stable copper paddlewheel metal organic framework (MOF) compositions and processes using the MOFs
US11253838B2 · kind B2 · utility
4Cited by
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10Claims
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Key dates
| Filing date | Aug 14, 2020 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Aug 14, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has been modified by substituting some of the BTC ligand (1,3,5, benzene tricarboxylic acid) with 5-aminoisophthalic acid (AIA). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF containing only the BTC ligand. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.