Encapsulation of Bimetallic Metal Nanoparticles into Robust Zirconium-Based Metal-Organic Frameworks: Evaluation of the Catalytic Potential for Size-Selective Hydrogenation.

Autor: Rösler C; Chair of Inorganic Chemistry II, Ruhr-University Bochum, Universitätsstr. 150, 44780, Bochum, Germany., Dissegna S; Chair of Inorganic and Metal-organic Chemistry, Technical University Munich, Lichtenbergstraße 4, 85748, Garching, Germany., Rechac VL; Instituto de Tecnología Química, Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Avda. de los Naranjo, s/n, 46022, Valencia, Spain., Kauer M; Chair of Inorganic Chemistry II, Ruhr-University Bochum, Universitätsstr. 150, 44780, Bochum, Germany., Guo P; Laboratory of Industrial Chemistry, Ruhr-University Bochum, Universitätsstr. 150, 44780, Bochum, Germany., Turner S; EMAT, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium., Ollegott K; Laboratory of Industrial Chemistry, Ruhr-University Bochum, Universitätsstr. 150, 44780, Bochum, Germany., Kobayashi H; Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan., Yamamoto T; Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University and the Ultramicroscopy Research Center, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan., Peeters D; Chair of Inorganic Chemistry II, Ruhr-University Bochum, Universitätsstr. 150, 44780, Bochum, Germany., Wang Y; Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Campus Nord, B330, 76344, Eggenstein-Leopoldshafen, Germany., Matsumura S; Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University and the Ultramicroscopy Research Center, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan., Van Tendeloo G; EMAT, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium., Kitagawa H; Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan., Muhler M; Laboratory of Industrial Chemistry, Ruhr-University Bochum, Universitätsstr. 150, 44780, Bochum, Germany., Llabrés I Xamena FX; Instituto de Tecnología Química, Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Avda. de los Naranjo, s/n, 46022, Valencia, Spain., Fischer RA; Chair of Inorganic and Metal-organic Chemistry, Technical University Munich, Lichtenbergstraße 4, 85748, Garching, Germany.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2017 Mar 13; Vol. 23 (15), pp. 3583-3594. Date of Electronic Publication: 2017 Feb 07.
DOI: 10.1002/chem.201603984
Abstrakt: 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 liquid-phase hydrogenation of nitrobenzene, competitive with commercially used Pt on activated carbon, but with superior size-selectivity for sterically varied substrates.
(© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
Externí odkaz: