NMR Study of Water Exchange in MOFs for Adsorption Heat Transformation Processes | Sciact - CRIS-system of Boreskov Institute of Catalysis

NMR Study of Water Exchange in MOFs for Adsorption Heat Transformation Processes Conference Abstracts

Conference

9th Heat Powered Cycles Conference
10-13 Apr 2022 , Bilbao

Source

Heat Powered Cycles 2021. Conference Proceedings
Compilation, HPC. 2022. 746 c.

Output data

Year: 2022, Pages: 221-225 Pages count : 4

Tags

metal-organic frameworks, adsorption heat transformation, solid state NMR, water residence time

Authors

Pizzanelli S. ¹ , Freni A. ¹ , Martini F. ² , Gordeeva L.G. ^3,4 , Solovyeva M.V. ^3,4 , Forte C. ¹

Affiliations

1	CNR-ICCOM, Institute of Chemistry of OrganoMetallic Compounds, via G. Moruzzi 1, 56124 Pisa, Italy
2	University of Pisa, Chemistry Department, via G. Moruzzi 13, 56124 Pisa, Italy
3	Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, Novosibirsk 630090, Russia
4	Novosibirsk State University, Pirogova str. 1, Novosibirsk 630090, Russia

Solid state nuclear magnetic resonance (NMR) spectroscopy was applied to two metalorganic frameworks (MOFs), MIL-101 (Cr) and NH2-MIL-101 (Cr), with the aim of investigating their interaction with water. The two MOFs contain coordinatively unsaturated Cr sites showing a strong affinity to water. Analysis of the NMR data allowed us to distinguish water bound to Cr3+ from unbound water residing in the porous space and to set a lower boundary to the residence time of water on the Cr site when the porous space is filled with water. This has implications on the adsorption behaviour of the porous matrix and influences the MOF performance in adsorption heat transformation.

Pizzanelli S. , Freni A. , Martini F. , Gordeeva L.G. , Solovyeva M.V. , Forte C.
NMR Study of Water Exchange in MOFs for Adsorption Heat Transformation Processes
In compilation Heat Powered Cycles 2021. Conference Proceedings. – HPC., 2022. – C.221-225.

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