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Engineering new defective phases of UiO family metal–organic frameworks with water

Firth, Francesca C. N.; Cliffe, Matthew J.; Vulpe, Diana; Aragones-Anglada, Marta; Moghadam, Peyman Z.; Fairen-Jimenez, David; Slater, Ben; Grey, Clare P.

Authors

Francesca C. N. Firth

Matthew J. Cliffe

Diana Vulpe

Marta Aragones-Anglada

Peyman Z. Moghadam

David Fairen-Jimenez

Ben Slater

Clare P. Grey



Abstract

As defects significantly affect the properties of metal–organic frameworks (MOFs)—from changing their mechanical properties to enhancing their catalytic ability—obtaining synthetic control over defects is essential to tuning the effects on the properties of the MOF. Previous work has shown that synthesis temperature and the identity and concentration of modulating acid are critical factors in determining the nature and distribution of defects in the UiO family of MOFs. In this paper we demonstrate that the amount of water in the reaction mixture in the synthesis of UiO family MOFs is an equally important factor, as it controls the phase which forms for both UiO-67(Hf) and UiO-66(Hf) (F4BDC). We use this new understanding of the importance of water to develop a new route to the stable defect-ordered hcp UiO-66(Hf) phase, demonstrating the effectiveness of this method of defect-engineering in the rational design of MOFs. The insights provided by this investigation open up the possibility of harnessing defects to produce new phases and dimensionalities of other MOFs, including nanosheets, for a variety of applications such as MOF-based membranes.

Journal Article Type Article
Publication Date Apr 7, 2019
Journal Journal of Materials Chemistry A
Print ISSN 2050-7488
Electronic ISSN 2050-7496
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 7
Issue 13
Pages 7459-7469
APA6 Citation Firth, F. C. N., Cliffe, M. J., Vulpe, D., Aragones-Anglada, M., Moghadam, P. Z., Fairen-Jimenez, D., …Grey, C. P. (2019). Engineering new defective phases of UiO family metal–organic frameworks with water. Journal of Materials Chemistry A, 7(13), 7459-7469. doi:10.1039/c8ta10682g
DOI https://doi.org/10.1039/c8ta10682g
Keywords Renewable energy, Sustainability and the environment; General materials science; General chemistry
Publisher URL https://pubs.rsc.org/en/content/articlelanding/2019/TA/C8TA10682G#!divAbstract
Additional Information ChemRXiv of submitted version available at https://doi.org/10.26434/chemrxiv.7301951.v1