气候变化领域集成服务门户(CCPortal): Control of zeolite pore interior for chemoselective alkyne/olefin separations

CCPortal

DOI	10.1126/science.aay8447
	Control of zeolite pore interior for chemoselective alkyne/olefin separations
	Chai Y.; Han X.; Li W.; Liu S.; Yao S.; Wang C.; Shi W.; Da-Silva I.; Manuel P.; Cheng Y.; Daemen L.D.; Ramirez-Cuesta A.J.; Tang C.C.; Jiang L.; Yang S.; Guan N.; Guan N.; Li L.; Li L.
发表日期	2020
ISSN	0036-8075
起始页码	1002
结束页码	1006
卷号	368 期号:6494
英文摘要	The efficient removal of alkyne impurities for the production of polymer-grade lower olefins remains an important and challenging goal for many industries. We report a strategy to control the pore interior of faujasite (FAU) zeolites by the confinement of isolated open nickel(II) sites in their six-membered rings. Under ambient conditions, Ni@FAU showed remarkable adsorption of alkynes and efficient separations of acetylene/ethylene, propyne/propylene, and butyne/1,3-butadiene mixtures, with unprecedented dynamic separation selectivities of 100, 92, and 83, respectively. In situ neutron diffraction and inelastic neutron scattering revealed that confined nickel(II) sites enabled chemoselective and reversible binding to acetylene through the formation of metastable [Ni(II)(C2H2)3] complexes. Control of the chemistry of pore interiors of easily scalable zeolites has unlocked their potential in challenging industrial separations. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	acetylene adsorption neutron diffraction neutron scattering polymer zeolite
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133460
推荐引用方式 GB/T 7714	Chai Y.,Han X.,Li W.,et al. Control of zeolite pore interior for chemoselective alkyne/olefin separations[J]. Science,2020,368(6494).
APA	Chai Y..,Han X..,Li W..,Liu S..,Yao S..,...&Li L..(2020).Control of zeolite pore interior for chemoselective alkyne/olefin separations.,368(6494).
MLA	Chai Y.,et al."Control of zeolite pore interior for chemoselective alkyne/olefin separations".368.6494(2020).