Flux melting of metal-organic frameworks

被引：76

作者：

Longley, Louis ^{[1
]}

Collins, Sean M. ^{[1
]}

Li, Shichun ^{[1
,2
]}

Smales, Glen J. ^{[3
,4
]}

Erucar, Ilknur ^{[5
]}

Qiao, Ang ^{[6
]}

Hou, Jingwei ^{[1
]}

Doherty, Cara M. ^{[7
]}

Thornton, Aaron W. ^{[6
]}

Hill, Anita J. ^{[7
]}

Yu, Xiao ^{[8
]}

Terrill, Nicholas J. ^{[4
]}

Smith, Andrew J. ^{[4
]}

Cohen, Seth M. ^{[8
]}

Midgley, Paul A. ^{[1
]}

Keen, David A. ^{[9
]}

Telfer, Shane G. ^{[10
]}

Bennett, Thomas D. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Charles Babbage Rd, Cambridge CB3 0FS, England

[2] China Acad Engn Phys, Inst Chem Mat, Mianyang 621900, Peoples R China

[3] UCL, Dept Chem, Gordon St, London WC1H 0AJ, England

[4] Diamond Light Source Ltd, Diamond House,Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England

[5] Ozyegin Univ, Fac Engn, Dept Nat & Math Sci, Istanbul, Turkey

[6] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

[7] CSIRO, Future Ind, Clayton, Vic 3168, Australia

[8] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA

[9] Rutherford Appleton Lab, ISIS Facil, Harwell Campus, Didcot OX11 0QX, Oxon, England

[10] Massey Univ, Inst Fundamental Sci, MacDiarmid Inst Adv Mat & Nanotechnol, Palmerston North 4442, New Zealand

来源：

CHEMICAL SCIENCE | 2019年 / 10卷 / 12期

基金：

欧洲研究理事会; 澳大利亚研究理事会; 英国工程与自然科学研究理事会; 欧盟地平线“2020”;

关键词：

ZEOLITIC IMIDAZOLATE FRAMEWORKS; ANGLE SCATTERING DATA; IONIC LIQUIDS; MEMBRANES; POLYMERS; CO2; TRANSITION; GENERATION; GLASSES; DESIGN;

D O I：

10.1039/c8sc04044c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Recent demonstrations of melting in the metal-organic framework (MOF) family have created interest in the interfacial domain between inorganic glasses and amorphous organic polymers. The chemical and physical behaviour of porous hybrid liquids and glasses is of particular interest, though opportunities are limited by the inaccessible melting temperatures of many MOFs. Here, we show that the processing technique of flux melting, borrowed' from the inorganic domain, may be applied in order to melt ZIF-8, a material which does not possess an accessible liquid state in the pure form. Effectively, we employ the high-temperature liquid state of one MOF as a solvent for a secondary, non-melting MOF component. Differential scanning calorimetry, small- and wide-angle X-ray scattering, electron microscopy and X-ray total scattering techniques are used to show the flux melting of the crystalline component within the liquid. Gas adsorption and positron annihilation lifetime spectroscopy measurements show that this results in enhanced, accessible porosity to a range of guest molecules in the resultant flux melted MOF glass.

引用

页码：3592 / 3601

页数：10

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