Name: ZIF-7
Other names: 1H-Benzimidazole, zinc salt
CAS: 909531-29-9
Unit molecular formula: C7H6N2.Zn.H2O
Unit molecular weight: 201.54122
Chain molecular formula: [Zn(bim)2]
Coordination metal: Zn
Ligand: Benzimidazole (CAS: 51-17-2)
Aperture: 10.2A
Pore volume: 0.39cm3/g
Adsorption capacity: ethane: 2.36 mmol/g; Ethylene: 2.01 mmol/g
Specific surface: BET specific surface 970m2/g
Product appearance: white powder
Product character
1. Stability
1) Stable in air, stable in aqueous solution for several days, decomposed in acidic solution
2. Preservation and activation methods
1) Under normal or low temperature conditions, dry sealed storage
3. Other features
Fluorescence :NA
4. Application field
1) ZIF-7 can be applied to the adsorption separation of hydrogen, as well as the adsorption separation of ethane/ethylene, with a unique flexible structure, showing different opening pressures for different gas molecules.
2) ZIF-7 has a high carbon content and can be used for gas adsorption as a porous carbon material with a certain morphology after high temperature carbonization
References: 1) Park, Kyo Sung; Ni, Zheng; Cote, Adrien P.; Choi, Jae Yong; Huang, Rudan; Uribe-Romo, Fernando J.; Chae, Hee K.; O'Keeffe, Michael; Yaghi, Omar M.; Exceptional chemical and thermal stability of zeolitic imidazolate frameworks. Proc. Natl. Acad. Sci. U. S. A., 2006, 103, 10186-10191, DOI: 10.1073/pnas.0602439103
2) Peng, Yuan; Li, Yanshuo; Ban, Yujie; Jin, Hua; Jiao, Wenmei; Liu, Xinlei; Yang, Weishen; Metal-organic framework nanosheets as building blocks for molecular sieving membranes; science,2014, 346(6215), 1356-1359, DOI: 10.1126/science.1254227;
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