Increasing Alkyl Chain Length in a Series of Layered Metal-Organic Frameworks Aids Ultrasonic Exfoliation to Form Nanosheets

Inorganic Chemistry
David J AshworthJonathan A Foster

Abstract

Metal-organic framework nanosheets (MONs) are attracting increasing attention as a diverse class of two-dimensional materials derived from metal-organic frameworks (MOFs). The principles behind the design of layered MOFs that can readily be exfoliated to form nanosheets, however, remain poorly understood. Here we systematically investigate an isoreticular series of layered MOFs functionalized with alkoxy substituents in order to understand the effect of substituent alkyl chain length on the structure and properties of the resulting nanosheets. A series of 2,5-alkoxybenzene-1,4-dicarboxylate ligands (O2CC6H2(OR)2CO2, R = methyl-pentyl, 1-5, respectively) was used to synthesize copper paddle-wheel MOFs. Rietveld and Pawley fitting of powder diffraction patterns for compounds Cu(3-5)(DMF) showed they adopt an isoreticular series with two-dimensional connectivity in which the interlayer distance increases from 8.68 Å (R = propyl) to 10.03 Å (R = pentyl). Adsorption of CO2 by the MOFs was found to increase from 27.2 to 40.2 cm3 g-1 with increasing chain length, which we attribute to the increasing accessible volume associated with increasing unit-cell volume. Ultrasound was used to exfoliate the layered MOFs to form MONs, with short...Continue Reading

References

Dec 22, 2007·Journal of Synchrotron Radiation·Nicola TartoniAnthony M T Bell
Sep 6, 2008·Nature Nanotechnology·Yenny HernandezJonathan N Coleman
Apr 23, 2009·Chemical Society Reviews·Jian-Rong LiHong-Cai Zhou
Aug 7, 2009·The Review of Scientific Instruments·S P ThompsonC C Tang
Jun 21, 2011·Journal of Synchrotron Radiation·Stephen P ThompsonChiu C Tang
Jun 29, 2011·Chemical Communications : Chem Comm·Pei-Zhou LiQiang Xu
Jun 7, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Paul J SainesAnthony K Cheetham
Oct 4, 2012·Journal of the American Chemical Society·Gang XuHiroshi Kitagawa
Mar 15, 2013·Journal of the American Chemical Society·Sebastian C JunggeburthBettina V Lotsch
May 8, 2013·Journal of the American Chemical Society·Gang XuHiroshi Kitagawa
Jun 5, 2013·Nanotechnology·Mustafa LotyaJonathan N Coleman
Mar 7, 2014·Chemical Communications : Chem Comm·P J BeldonA K Cheetham
Nov 5, 2014·Nature Materials·Tania RodenasJorge Gascon
Mar 10, 2016·Angewandte Chemie·Lingyun CaoWenbin Lin
Jul 28, 2016·Chemical Communications : Chem Comm·Jonathan A FosterAnthony K Cheetham
Nov 15, 2016·Chemical Society Reviews·Yuan-Biao HuangRong Cao
Mar 28, 2017·Journal of the American Chemical Society·Matthew J CliffeClare P Grey
Jul 19, 2017·ACS Applied Materials & Interfaces·Samia BenmansourCarlos J Gómez-García
Jul 29, 2017·ACS Applied Materials & Interfaces·Huixiang Ang, Liang Hong
Aug 11, 2017·Chemical Society Reviews·Russell E Morris, Lee Brammer
May 19, 2018·Advanced Materials·Alexey PustovarenkoJorge Gascon
Jul 5, 2018·Chemical Society Reviews·Meiting ZhaoHua Zhang
Sep 18, 2018·Journal of the American Chemical Society·Guangxu LanWenbin Lin
Sep 18, 2018·Chemistry : a European Journal·David J AshworthJonathan A Foster
Sep 20, 2018·Chemical Communications : Chem Comm·Pinghua LingJianping Lei
Nov 28, 2018·Advanced Science·Kolleboyina JayaramuluRoland A Fischer

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BETA
X-ray
scanning electron microscopy
AFM
dynamic light scattering

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Gwyddion
PerkinElmer Spectrum One
Elementar
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