Encapsulation of bimetallic metal nanoparticles into robust zirconium-based metal–organic frameworks: Evaluation of the catalytic potential for size-selective hydrogenation

Christoph Rösler, Stefano Dissegna, Victor L. Rechac, Max Kauer, Penghu Guo, Stuart Turner, Kevin Ollegott, Hirokazu Kobayashi, Tomokazu Yamamoto, Daniel Peeters, Yuemin Wang, Syo Matsumura, Gustaaf van Tendeloo, Hiroshi Kitagawa, Martin Muhler, Francesc X. Llabrés I Xamena, Roland A. Fischer

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The realization of metal nanoparticles (NPs) with bimetallic character and distinct composition for specific catalytic applications is an intensively studied field. Due to the synergy between metals, most bimetallic particles exhibit unique properties that are hardly provided by the individual monometallic counterparts. However, as small-sized NPs possess high surface energy, agglomeration during catalytic reactions is favored. Sufficient stabilization can be achieved by confinement of NPs in porous support materials. In this sense, metal–organic frameworks (MOFs) in particular have gained a lot of attention during the last years; however, encapsulation of bimetallic species remains challenging. Herein, the exclusive embedding of preformed core–shell PdPt and RuPt NPs into chemically robust Zr-based MOFs is presented. Microstructural characterization manifests partial retention of the core–shell systems after successful encapsulation without harming the crystallinity of the microporous support. The resulting chemically robust NP@UiO-66 materials exhibit enhanced catalytic activity towards the liquidphase hydrogenation of nitrobenzene, competitive with commercially used Pt on activated carbon, but with superior size-selectivity for sterically varied substrates.

Original languageEnglish
Pages (from-to)3583-3594
Number of pages12
JournalChemistry - A European Journal
Volume23
Issue number15
DOIs
Publication statusPublished - Jan 1 2017

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

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    Rösler, C., Dissegna, S., Rechac, V. L., Kauer, M., Guo, P., Turner, S., Ollegott, K., Kobayashi, H., Yamamoto, T., Peeters, D., Wang, Y., Matsumura, S., van Tendeloo, G., Kitagawa, H., Muhler, M., Llabrés I Xamena, F. X., & Fischer, R. A. (2017). Encapsulation of bimetallic metal nanoparticles into robust zirconium-based metal–organic frameworks: Evaluation of the catalytic potential for size-selective hydrogenation. Chemistry - A European Journal, 23(15), 3583-3594. https://doi.org/10.1002/chem.201603984