期刊
INORGANIC CHEMISTRY
卷 59, 期 18, 页码 13542-13550出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.0c01912
关键词
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资金
- National Key Research and Development Program of China [2018YFA0704502, 2017YFA0206800]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20000000]
- Key Research Program of Frontier Science CAS [QYZDY-SSW-SLH025]
- National Natural Science Foundation of China [21871265, 21731006, 21471148]
- Youth Innovation Promotion Association CAS
The development of practical porous materials for the selective capture of CO2 from flue gas and crude biogas is highly critical for both environment protection and energy safety. Here, a novel metal-organic framework (FJI-H29) has been prepared, which not only has excellent acid-base resistance but also possesses polar micropores (3.4-4.3 angstrom) that can match CO2 molecules well. FJI-H29 can selectively capture CO2 from N-2 and CH4 with excellent separation efficiency and suitable adsorption enthalpy under ambient conditions. Breakthrough experiments further confirm its practicability for both CO2/N-2 and CO2/CH4 separation. All of these confirm FJI-H29 is a practical CO2 adsorbent. Modeling calculations reveal that the confinement effect of micropores and the polar environment synergistically promotes the selective adsorption of CO2, which will provide a potential strategy for the synthesis of a practical metal-organic framework for CO2 capture.
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