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题名: Metal-organic framework nanosheets as building blocks for molecular sieving membranes
作者: Peng, Yuan1, 2;  Li, Yanshuo1;  Ban, Yujie1, 2;  Jin, Hua1, 2;  Jiao, Wenmei1, 2;  Liu, Xinlei1;  Yang, Weishen1
刊名: SCIENCE
发表日期: 2014-12-12
DOI: 10.1126/science.1254227
卷: 346, 期:6215, 页:1356-1359
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: Layered metal-organic frameworks would be a diverse source of crystalline sheets with nanometer thickness for molecular sieving if they could be exfoliated, but there is a challenge in retaining the morphological and structural integrity. We report the preparation of 1-nanometer-thick sheets with large lateral area and high crystallinity from layered MOFs. They are used as building blocks for ultrathin molecular sieve membranes, which achieve hydrogen gas (H-2) permeance of up to several thousand gas permeation units (GPUs) with H-2/CO2 selectivity greater than 200. We found an unusual proportional relationship between H-2 permeance and H-2 selectivity for the membranes, and achieved a simultaneous increase in both permeance and selectivity by suppressing lamellar stacking of the nanosheets.
关键词[WOS]: GRAPHENE OXIDE MEMBRANES ;  HYDROGEN SEPARATION ;  COORDINATION POLYMER ;  HIGH-SELECTIVITY ;  ULTRATHIN
语种: 英语
WOS记录号: WOS:000346189600048
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145475
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Peng, Yuan,Li, Yanshuo,Ban, Yujie,et al. Metal-organic framework nanosheets as building blocks for molecular sieving membranes[J]. SCIENCE,2014,346(6215):1356-1359.
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