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Issue 5, 2014
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Functionality preservation with enhanced mechanical integrity in the nanocomposites of the metal–organic framework, ZIF-8, with BN nanosheets

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Abstract

Metal–organic frameworks (MOFs) and boron nitride both possess novel properties, the former associated with microporosity and the latter with good mechanical properties. We have synthesized composites of the imidazolate based MOF, ZIF-8, and few-layer BN in order to see whether we can incorporate the properties of both these materials in the composites. The composites so prepared between BN nanosheets and ZIF-8 have compositions ZIF–1BN, ZIF–2BN, ZIF–3BN and ∼ZIF–4BN. The composites have been characterized by PXRD, TGA, XPS, electron microscopy, IR, Raman and solid state NMR spectroscopy. The composites possess good surface areas, the actual value decreasing only slightly with the increase in the BN content. The CO2 uptake remains nearly the same in the composites as in the parent ZIF-8. More importantly, the addition of BN markedly improves the mechanical properties of ZIF-8, a feature that is much desired in MOFs. Observation of microporous features along with improved mechanical properties in a MOF is indeed noteworthy. Such manipulation of properties can be profitably exploited in practical applications.

Graphical abstract: Functionality preservation with enhanced mechanical integrity in the nanocomposites of the metal–organic framework, ZIF-8, with BN nanosheets

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Article information


Submitted
17 Apr 2014
Accepted
25 Jun 2014
First published
03 Jul 2014

Mater. Horiz., 2014,1, 513-517
Article type
Communication

Functionality preservation with enhanced mechanical integrity in the nanocomposites of the metal–organic framework, ZIF-8, with BN nanosheets

R. Kumar, D. Raut, I. Ahmad, U. Ramamurty, T. K. Maji and C. N. R. Rao, Mater. Horiz., 2014, 1, 513
DOI: 10.1039/C4MH00065J

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