Functionalised metal-organic frameworks

A novel approach to stabilising single metal atoms

Journal article (2017)

Authors

P.A. Szilagyi ChemE/Materials for Energy Conversion and Storage - AS
D. M. Rogers The University of Edinburgh
I. Zaiser Max Planck Institute for Intelligent Systems
E Callini Swiss Federal Laboratories for Materials Science and Technology (Empa), École Polytechnique de Lausanne
Stuart Turner Universiteit Antwerpen
A Borgschulte Swiss Federal Laboratories for Materials Science and Technology (Empa)
A. Züttel ChemE/Materials for Energy Conversion and Storage - AS
J.J.C. Geerlings ChemE/Materials for Energy Conversion and Storage - AS
M Hirscher Max Planck Institute for Intelligent Systems
B. Dam ChemE/Materials for Energy Conversion and Storage - AS
Research Group
ChemE/Materials for Energy Conversion and Storage (AS) (TU Delft)
Copyright: © 2017 P.A. Szilagyi, D. M. Rogers, I. Zaiser, E Callini, Stuart Turner, A Borgschulte, A. Züttel, J.J.C. Geerlings, M Hirscher, B. Dam
DOI: https://doi.org/10.1039/c7ta03134c
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Published Date

2017

Language

English

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Faculty

Applied Sciences

Department

ChemE/Chemical Engineering

Research Group

ChemE/Materials for Energy Conversion and Storage

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.

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