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Catalyst accessibility to chemical reductants in metal–organic frameworks

DOI: 10.1039/C7CC00022G DOI Help

Authors: Souvik Roy (Uppsala University) , Vlad Pascanu (Stockholm University) , Sonja Pullen (Uppsala University) , Greco González Miera (Stockholm University) , Belén Martín-matute (Stockholm University) , Sascha Ott (Stockholm University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chem. Commun. , VOL 53 , PAGES 3257 - 3260

State: Published (Approved)
Published: February 2017
Diamond Proposal Number(s): 14439

Abstract: A molecular H2-evolving catalyst, [Fe2(cbdt)(CO)6] ([FeFe], cbdt = 3-carboxybenzene-1,2-dithiolate), has been attached covalently to an amino-functionalized MIL-101(Cr) through an amide bond. Chemical reduction experiments reveal that the MOF channels can be clogged by ion pairs that are formed between the oxidized reductant and the reduced catalyst. This effect is lessened in MIL-101-NH-[FeFe] with lower [FeFe] loadings. On longer timescales, it is shown that large proportions of the [FeFe] catalysts within the MOF engage in photochemical hydrogen production and the amount of produced hydrogen is proportional to the catalyst loading.

Subject Areas: Chemistry

Instruments: B18-Core EXAFS

Added On: 10/05/2017 16:00

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