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DOI	10.1126/science.aar6833
	Nanoporous materials: Design and control of gas diffusion process in a nanoporous soft crystal
	Gu C.; Hosono N.; Zheng J.-J.; Sato Y.; Kusaka S.; Sakaki S.; Kitagawa S.
发表日期	2019
ISSN	0036-8075
起始页码	387
结束页码	391
卷号	363 期号:6425
英文摘要	Design of the gas-diffusion process in a porous material is challenging because a contracted pore aperture is a prerequisite, whereas the channel traffic of guest molecules is regulated by the flexible and dynamic motions of nanochannels. Here, we present the rational design of a diffusion-regulatory system in a porous coordination polymer (PCP) in which flip-flop molecular motions within the framework structure provide kinetic gate functions that enable efficient gas separation and storage. The PCP shows substantial temperature-responsive adsorption in which the adsorbate molecules are differentiated by each gate-admission temperature, facilitating kinetics-based gas separations of oxygen/argon and ethylene/ethane with high selectivities of ∼350 and ∼75, respectively. Additionally, we demonstrate the long-lasting physical encapsulation of ethylene at ambient conditions, owing to strongly impeded diffusion in distinctive nanochannels. © 2019 American Association for the Advancement of Science.All right reserved.
英文关键词	argon; ethane; ethylene; metal organic framework; nanocrystal; oxygen; polymer; porous coordination polymer; unclassified drug; adsorption; Article; binding affinity; crystal structure; gas diffusion; measurement precision; Monte Carlo method; nanoencapsulation; phase separation; priority journal; process design; process optimization; regulatory mechanism; storage; structure analysis; synthesis; temperature; thermal analysis; X ray diffraction
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243887
作者单位	Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto, 606-8501, Japan; Fukui Institute for Fundamental Chemistry, Kyoto University, Takano Nishihiraki-cho 34-4, Sakyo-ku, Kyoto, 606-8103, Japan; State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, No. 381 Wushan Road, Tianhe District, Guangzhou, 510640, China; Department of Advanced Materials Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan; Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
推荐引用方式 GB/T 7714	Gu C.,Hosono N.,Zheng J.-J.,et al. Nanoporous materials: Design and control of gas diffusion process in a nanoporous soft crystal[J],2019,363(6425).
APA	Gu C..,Hosono N..,Zheng J.-J..,Sato Y..,Kusaka S..,...&Kitagawa S..(2019).Nanoporous materials: Design and control of gas diffusion process in a nanoporous soft crystal.Science,363(6425).
MLA	Gu C.,et al."Nanoporous materials: Design and control of gas diffusion process in a nanoporous soft crystal".Science 363.6425(2019).