Title
Atomic layer deposition of Pt nanoparticles within the cages of MIL-101 : a mild and recyclable hydrogenation catalyst Atomic layer deposition of Pt nanoparticles within the cages of MIL-101 : a mild and recyclable hydrogenation catalyst
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Subject
Physics
Engineering sciences. Technology
Source (journal)
Nanomaterials
Volume/pages
6(2016) :3 , 11 p.
ISSN
2079-4991
2079-4991
Article Reference
45
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
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.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/ac680b/131902.pdf
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