Underlying mechanism of the hydrothermal instability of Cu

2016, Volume 10, Issue 1

Abstract

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Frontiers of Chemical Science and Engineering >> 2016, Volume 10, Issue 1 doi: 10.1007/s11705-015-1552-0

Underlying mechanism of the hydrothermal instability of Cu

School of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK

Accepted: 2016-01-15 Available online: 2016-02-29

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Abstract

Water induced decomposition of Cu (BTC) (BTC= benzene-1,3,5-tricarboxylate) metal-organic framework (MOF) was studied using dynamic water vapour adsorption. Small-angle X-ray scattering, Fourier transform infrared spectroscopy and differential scanning calorimetry analyses revealed that the underlying mechanism of Cu (BTC) MOF decomposition under humid streams is the interpenetration of water molecules into Cu-BTC coordination to displace organic linkers (BTC) from Cu centres.

Keywords

hydrothermal stability ; metal-organic framework (MOF) ; open metal sites (OMSs) ; dynamic water vapour adsorption

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