共 25 条
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
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.
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页码:14546 / 14549
页数:4
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