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Title
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Functionalised metal-organic frameworks : a novel approach to stabilising single metal atoms
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Author
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Abstract
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| We have investigated the potential of metal-organic frameworks for immobilising single atoms of transition metals using a model system of Pd supported on NH2-MIL-101(Cr). Our transmission electron microscopy and in situ Raman spectroscopy results give evidence for the first time that functionalised metal-organic frameworks may support, isolate and stabilise single atoms of palladium. Using thermal desorption spectroscopy we were able to evaluate the proportion of single Pd atoms. Furthermore, in a combined theoretical-experimental approach, we show that the H-H bonds in a H-2 molecule elongate by over 15% through the formation of a complex with single atoms of Pd. Such deformation would affect any hydrogenation reaction and thus the single atoms supported on metal-organic frameworks may become promising single atom catalysts in future. |
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Language
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English
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Source (journal)
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Journal of materials chemistry A : materials for energy and sustainability / Royal Society of Chemistry [London] - Cambridge, 2013, currens
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Publication
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Cambridge
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2017
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ISSN
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2050-7488
[print]
2050-7496
[online]
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Volume/pages
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5
:30
(2017)
, p. 15559-15566
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ISI
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000406672400013
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Full text (Publisher's DOI)
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Full text (open access)
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