Atomic Layer Deposition of Pt Nanoparticles within the Cages of MIL-101: A Mild and Recyclable Hydrogenation Catalyst
Karen Leus,
Jolien Dendooven,
Norini Tahir,
Ranjith K. Ramachandran,
Maria Meledina,
Stuart Turner,
Gustaaf Van Tendeloo,
Jan L. Goeman,
Johan Van der Eycken,
Christophe Detavernier,
Pascal Van Der Voort
Affiliations
Karen Leus
Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium
Jolien Dendooven
Department of Solid State Sciences, Conformal Coatings on Nanomaterials (CoCooN), Ghent University, Krijgslaan 281-S1, B-9000 Ghent, Belgium
Norini Tahir
Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium
Ranjith K. Ramachandran
Department of Solid State Sciences, Conformal Coatings on Nanomaterials (CoCooN), Ghent University, Krijgslaan 281-S1, B-9000 Ghent, Belgium
Maria Meledina
EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
Stuart Turner
EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
Gustaaf Van Tendeloo
EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
Jan L. Goeman
Department of Organic and Macromolecular Chemistry, Laboratory for Organic and Bioorganic Synthesis, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
Johan Van der Eycken
Department of Organic and Macromolecular Chemistry, Laboratory for Organic and Bioorganic Synthesis, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
Christophe Detavernier
Department of Solid State Sciences, Conformal Coatings on Nanomaterials (CoCooN), Ghent University, Krijgslaan 281-S1, B-9000 Ghent, Belgium
Pascal Van Der Voort
Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium
We present the in situ synthesis of Pt nanoparticles within MIL-101-Cr (MIL = Materials Institute Lavoisier) by means of atomic layer deposition (ALD). The obtained Pt@MIL-101 materials were characterized by means of N2 adsorption and X-ray powder diffraction (XRPD) measurements, showing that the structure of the metal organic framework was well preserved during the ALD deposition. X-ray fluorescence (XRF) and transmission electron microscopy (TEM) analysis confirmed the deposition of highly dispersed Pt nanoparticles with sizes determined by the MIL-101-Cr pore sizes and with an increased Pt loading for an increasing number of ALD cycles. The Pt@MIL-101 material was examined as catalyst in the hydrogenation of different linear and cyclic olefins at room temperature, showing full conversion for each substrate. Moreover, even under solvent free conditions, full conversion of the substrate was observed. A high concentration test has been performed showing that the Pt@MIL-101 is stable for a long reaction time without loss of activity, crystallinity and with very low Pt leaching.
