A multi-dimensional quasi-zeolite with 12 x 10 x 7-ring channels   demonstrates high thermal stability and good gas adsorption selectivity

doi:10.1039/c5sc04916d

CORC > 北京大学 > 化学与分子工程学院

	A multi-dimensional quasi-zeolite with 12 x 10 x 7-ring channels demonstrates high thermal stability and good gas adsorption selectivity
	Liang, Jie ; Xia, Wei ; Sun, Junliang ; Su, Jie ; Dou, Maofeng ; Zou, Ruqiang ; Liao, Fuhui ; Wang, Yingxia ; Lin, Jianhua
刊名	CHEMICAL SCIENCE
	2016
关键词	MOLECULAR-SIEVE CRYSTAL-STRUCTURE ELECTRON CRYSTALLOGRAPHY HYDROTHERMAL SYNTHESIS RIETVELD REFINEMENT POWDER DIFFRACTION FRAMEWORK PHASE OCTADECASIL TOPOLOGY
DOI	10.1039/c5sc04916d
英文摘要	A novel quasi-zeolite PKU-15, with a rare 3-dimensional structure containing interconnected large (12-ring), medium (10-ring) and small (7-ring) multi-pore channels, was hydrothermally synthesised and characterised. A unique tri-bridging O2- anion is found to be encapsulated in the cage-like (Ge,Si)(12)O-31 building unit and energetically stabilises the PKU-15 framework. The removal of this oxygen atom would convert PKU-15 into a hypothetical zeolite PKU-15H. Thus, PKU-15 can be considered as a unique 'quasi-zeolite', which bridges porous germanates and zeolites. Owing to the absence of terminal Ge-OH groups in its structure, PKU-15 shows a remarkably high thermal stability of up to 600 degrees C. PKU-15 is also the first microporous germanate that exhibits permanent porosity, with a BET area of 428 m(2) g(-1) and a good adsorption affinity toward CO2.; National Natural Science Foundation of China [21171009, 11275012, 21471009, 21321001]; State Science and Technology Commission of China [2012CB224802, 2013CB933402]; SCI(E); EI; ARTICLE; junliang.sun@pku.edu.cn; yxwang@pku.edu.cn; 5; 3025-3030; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437961]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Liang, Jie,Xia, Wei,Sun, Junliang,et al. A multi-dimensional quasi-zeolite with 12 x 10 x 7-ring channels demonstrates high thermal stability and good gas adsorption selectivity[J]. CHEMICAL SCIENCE,2016.
APA	Liang, Jie.,Xia, Wei.,Sun, Junliang.,Su, Jie.,Dou, Maofeng.,...&Lin, Jianhua.(2016).A multi-dimensional quasi-zeolite with 12 x 10 x 7-ring channels demonstrates high thermal stability and good gas adsorption selectivity.CHEMICAL SCIENCE.
MLA	Liang, Jie,et al."A multi-dimensional quasi-zeolite with 12 x 10 x 7-ring channels demonstrates high thermal stability and good gas adsorption selectivity".CHEMICAL SCIENCE (2016).