气候变化领域集成服务门户(CCPortal): Robust metal–organic framework with multiple traps for trace Xe/Kr separation

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DOI	10.1016/j.scib.2020.12.031
	Robust metal–organic framework with multiple traps for trace Xe/Kr separation
	Zhang H.; Fan Y.; Krishna R.; Feng X.; Wang L.; Luo F.
发表日期	2021
ISSN	20959273
起始页码	1073
结束页码	1079
卷号	66 期号:11
英文摘要	Direct separation of Xe and Kr from air or used nuclear fuel (UNF) off-gas by means of porous adsorbents is of industrial importance but is a very challenging task. In this work, we show a robust metal–organic framework (MOF), namely ECUT-60, which renders not only high chemical stability, but also unique structure with multiple traps. This leads to the ultrahigh Xe adsorption capacity, exceeding most reported porous materials. Impressively, this MOF also enables high selectivity of Xe over Kr, CO2, O2, and N2, leading to the high-performance separation for trace quantitites of Xe/Kr from a simulated UNF reprocessing off-gas. The separation capability has been demonstrated by using dynamic breakthrough experiments, giving the record Xe uptake up to 70.4 mmol/kg and the production of 19.7 mmol/kg pure Xe. Consequently, ECUT-60 has promising potential in direct production of Xe from UNF off-gas or air. The separation mechanism, as unveiled by theoretical calculation, is attributed to the multiple traps in ECUT-60 that affords rigid restrict for Xe atom via van der Waals force. © 2020 Science China Press
关键词	MOFs Multiple traps UNF off-gas Xe/Kr separation
英文关键词	Chemical stability; Porous materials; Separation; Trace elements; Van der Waals forces; Adsorption capacities; Breakthrough experiment; Direct production; High selectivity; Multiple traps; Porous adsorbent; Separation mechanism; Theoretical calculations; Xenon
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207662
作者单位	School of Biology, Chemistry and Material Science, East China University of Technology, Nanchang, 344000, China; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, XH Amsterdam, 1098, Netherlands
推荐引用方式 GB/T 7714	Zhang H.,Fan Y.,Krishna R.,等. Robust metal–organic framework with multiple traps for trace Xe/Kr separation[J],2021,66(11).
APA	Zhang H.,Fan Y.,Krishna R.,Feng X.,Wang L.,&Luo F..(2021).Robust metal–organic framework with multiple traps for trace Xe/Kr separation.Science Bulletin,66(11).
MLA	Zhang H.,et al."Robust metal–organic framework with multiple traps for trace Xe/Kr separation".Science Bulletin 66.11(2021).