A1 Journal article (refereed)
Towards atomically precise supported catalysts from monolayer‐protected clusters : the critical role of the support (2020)

Häkkinen, H., Longo, A., de Boed, E., Mammen, N., van der Linden, M., Honkala, K., de Jongh, P., & Donoeva, B. (2020). Towards atomically precise supported catalysts from monolayer‐protected clusters : the critical role of the support. Chemistry : A European Journal, 26(31), 7051-7058. https://doi.org/10.1002/chem.202000637

JYU authors or editors

Publication details

All authors or editors: Häkkinen, Hannu; Longo, Alessandro; de Boed, Ewoud; Mammen, Nisha; van der Linden, Marte; Honkala, Karoliina; de Jongh, Petra; Donoeva, Baira

Journal or series: Chemistry : A European Journal

ISSN: 0947-6539

eISSN: 1521-3765

Publication year: 2020

Volume: 26

Issue number: 31

Pages range: 7051-7058

Publisher: Wiley-VCH Verlag

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1002/chem.202000637

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/69722

Abstract

Controlling the size and uniformity of metal clusters with atomic precision is essential for fine‐tuning their catalytic properties, however for clusters deposited on supports such control is challenging. Here, by combining X‐ray absorption spectroscopy and density functional theory calculations, we show that supports play a crucial role in the evolution of monolayer‐protected clusters into catalysts. Based on the acidic nature of the support, cluster‐support interactions lead either to fragmentation of the cluster into isolated Au‐ligand species or ligand‐free metallic Au0 clusters. On Lewis acidic supports that bind metals strongly, the latter transformation occurs while preserving the original size of the metal cluster, as demonstrated for various Au n sizes. These findings underline the role of the support in the design of supported catalysts, and represent an important step toward the synthesis of atomically precise supported nanomaterials with tailored physico‐chemical properties.

Keywords: nanoparticles; clusters; gold; catalysts

Free keywords: monolayer-protected clusters; gold clusters; cluster-support interaction; X-Ray Absorption Spectroscopy

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Related projects

Ministry reporting: Yes

VIRTA submission year: 2020

JUFO rating: 2