A new route to porous metal–organic framework crystal–glass composites,Chemical Science

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A new route to porous metal–organic framework crystal–glass composites
Chemical Science ( IF 7.6 ) Pub Date : 2020-08-28 , DOI: 10.1039/d0sc04008h
Shichun Li _{1,

2,

3,

4,

5} , Shuwen Yu _{1,

2,

3,

4,

6} , Sean M. Collins _{5,

7,

8,

9,

10} , Duncan N. Johnstone _{5,

7,

8,

9} , Christopher W. Ashling _{5,

7,

8,

9} , Adam F. Sapnik _{5,

7,

8,

9} , Philip A. Chater _{9,

11,

12,

13} , Dean S. Keeble _{9,

11,

12,

13} , Lauren N. McHugh _{5,

7,

8,

9} , Paul A. Midgley _{5,

7,

8,

9} , David. A. Keen _{9,

14,

15,

16} , Thomas D. Bennett _{5,

7,

8,

9}

Affiliation

Institute of Chemical Materials
China Academy of Engineering Physics
Mianyang 621900
P. R. China
Department of Materials Science and Metallurgy
Xiamen Institute of Rare Earth Materials
University of Cambridge
Cambridge CB3 0FS
UK
School of Chemical and Process Engineering and School of Chemistry
Diamond House
Harwell Science & Innovation Campus
Diamond Light Source, Ltd.
ISIS Facility
Rutherford Appleton Laboratory
Harwell Campus

Metal–organic framework crystal–glass composite (MOF CGC) materials consist of a crystalline MOF embedded within a MOF–glass matrix. In this work, a new synthetic route to these materials is demonstrated through the preparation of two ZIF-62 glass-based CGCs, one with crystalline ZIF-67 and the other with crystalline UiO-66. Previous attempts to form these CGCs failed due to the high processing temperatures involved in heating above the melting point of ZIF-62. Annealing of the ZIF-62 glass above the glass transition with each MOF however leads to stable CGC formation at lower temperatures. The reduction in processing temperatures will enable the formation of a greatly expanded range of MOF CGCs.

中文翻译：

多孔金属-有机骨架晶体-玻璃复合材料的新途径

金属-有机骨架晶体-玻璃复合材料（MOF CGC）由嵌入在MOF-玻璃基质中的晶体MOF组成。在这项工作中，通过制备两种ZIF-62玻璃基CGC（一种具有ZIF-67晶体，另一种具有UiO-66晶体）证明了一种合成这些材料的新途径。由于加热到ZIF-62熔点以上所涉及的高加工温度，先前形成这些CGC的尝试失败了。但是，在每个MOF的玻璃化转变温度以上对ZIF-62玻璃进行退火都会导致在较低温度下稳定地生成CGC。加工温度的降低将使MOF CGC的形成范围大大扩大。

更新日期：2020-09-23

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