Functionalised metal-organic frameworks: A novel approach to stabilising single metal atoms

P. Szilágyi, D. M. Rogers, I. Zaiser, E Callini, Stuart Turner, A Borgschulte, A. Züttel, H. Geerlings, M Hirscher, B. Dam

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)
30 Downloads (Pure)

Abstract

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 H2 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.

Original languageEnglish
Pages (from-to)15559-15566
Number of pages8
JournalJournal of Materials Chemistry A
Volume5
Issue number30
DOIs
Publication statusPublished - 2017

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