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Updated: Feb 12, 2026

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs
Published on: January 17, 2020
Enhanced NH3 uptake and selectivity at low pressure in monolithic MOF-808 metal-organic gels incorporating CuCl2
Chuan Zhou1, Feng Liu1, Chao Zheng1
1State Key Laboratory of Chemistry for NBC Hazards Protection Beijing 102205 PR China lily97@buaa.edu.cn dahema2007goodluck@163.com yepw2001@163.com.
Abstract:
The capture and separation of trace NH3 from industrial processes or polluted air remains a significant challenge. Herein, we report a monolithic CuCl2@G808 metal-organic gel achieving an NH3 uptake of 2.23 mmol g-1 at 298 K and 0.002 bar: a 79% enhancement compared to pristine G808. The ideal adsorbed solution theory (IAST) selectivity reaches 2.8 × 103 for NH3/N2 and 4.9 × 105 for NH3/H2 at 298 K, ranking among the highest reported values. In situ FTIR and XPS analyses reveal that the excellent performance mainly originates from two synergistic mechanisms: (i) coordination between NH3 and Cu2+ sites, and (ii) hydrogen bonding between NH3 and Cl- sites.
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