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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 : 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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