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

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Chemical Science Vol - 7 Issue - 4

Chemical Science Vol - 7 Issue - 3

Chemical Science Vol - 7 Issue - 2

Chemical Science Vol -6

Chemical Science Vol -5

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

Content Provider	Royal Society of Chemistry (RSC)
Author	Xia, Wei Dou, Maofeng Lin, Jianhua Su, Jie Wang, Yingxia Liang, Jie Sun, Junliang Zou, Ruqiang Liao, Fuhui
Copyright Year	2016
Abstract	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)12O31 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 °C. PKU-15 is also the first microporous germanate that exhibits permanent porosity, with a BET area of 428 m2 g−1 and a good adsorption affinity toward CO2.
Starting Page	3025
Ending Page	3030
Page Count	6
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	7
Issue Number	5
Journal	Chemical Science
DOI	10.1039/c5sc04916d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	BET Oxygen Adsorption Ion Zeolite Porosity Ge
Content Type	Text
Resource Type	Article
Subject	Chemistry

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