Facile Mechanosynthesis of Amorphous Zeolitic Imidazolate Frameworks

被引：189

作者：

Bennett, Thomas D. ^{[1
]}

Cao, Shuai ^{[1
]}

Tan, Jin Chong ^{[1
]}

Keen, David A. ^{[2
]}

Bithell, Erica G. ^{[1
]}

Beldon, Patrick J. ^{[3
]}

Friscic, Tomislav ^{[3
]}

Cheetham, Anthony K. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[2] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[3] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 37期

基金：

英国工程与自然科学研究理事会;

关键词：

MECHANICAL-PROPERTIES; CRYSTAL-STRUCTURES; PORE-SIZE; PRESSURE; TEMPERATURE; DIFFRACTION; SEPARATION;

D O I：

10.1021/ja206082s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A fast and efficient mechanosynthesis (ball-milling) method of preparing amorphous zeolitic imidazolate frameworks (ZIFs) from different starting materials is discussed. Using X-ray total scattering, N-2 sorption analysis, and gas pycnometry, these frameworks are indistinguishable from one another and from temperature-amorphized ZIFs. Gas sorption analysis also confirms that they are nonporous once formed, in contrast to activated ZIF-4, which displays interesting gate-opening behavior. Nanoparticles of a prototypical nanoporous substituted ZIF, ZIF-8, were also prepared and shown to undergo amorphization.

引用

页码：14546 / 14549

页数：4

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