globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2021.05.006
论文题名:
ZIF-L membrane with a membrane-interlocked-support composite architecture for H2/CO2 separation
作者: Yang K.; Hu S.; Ban Y.; Zhou Y.; Cao N.; Zhao M.; Xiao Y.; Li W.; Yang W.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
语种: 英语
中文关键词: H2/CO2 separation ; Interfacial assembly ; Membrane-interlocked-support composite architecture ; MOF membranes
英文摘要: Metal–organic framework (MOF) membranes hold great promise in energy-efficient chemical separations. The outstanding challenges of the microstructural design stem from (1) thinning of membranes to immensely reduce the mass-transfer resistance (for high permeances); (2) tuning of orientation to optimize the selective transport of gas molecules, and (3) reinforcement of intercrystalline structure to subside leakage through defective gaps (for high selectivity). Here, we propose the ZIF-L membrane that is completely confined into the voids of the alumina support through an interfacial assembly process, producing an appealing membrane-interlocked-support (MIS) composite architecture that meets the requirements of the microstructural design of MOF membranes. Consequently, the membranes show average H2 permeances of above 4000 GPU and H2/CO2 separation factor (SF) of above 200, representing record-high separation performances of ZIF-L membranes and falling into the industrial target zone (H2 permeance > 1000 GPU and H2/CO2 SF > 60). Furthermore, the ZIF-L membrane possessing the MIS composite architecture that is established with alumina particles as scaffolds shows mechanical stability, scraped repeatedly by a piece of silicon rubber causing no selectivity loss. © 2021 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170470
Appears in Collections:气候变化与战略

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作者单位: State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China; University of Chinese Academy of Sciences, Beijing, 100039, China; Department of Chemical Physics, School of Chemistry and Materials Science, iCHeM, Chinese Academy of Sciences, Excellence Center for Nanoscience, University of Science and Technology of China, Hefei, 230026, China; Dalian National Laboratory for Clean Energy, Dalian, 116023, China

Recommended Citation:
Yang K.,Hu S.,Ban Y.,et al. ZIF-L membrane with a membrane-interlocked-support composite architecture for H2/CO2 separation[J]. Science Bulletin,2021-01-01
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