期刊
NANOMATERIALS
卷 6, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/nano6030045
关键词
platinum; metal organic frameworks; hydrogenation; atomic layer deposition
类别
资金
- Ghent University Bijzonder Onderzoeksfonds BOF post-doctoral Grant [01P06813T]
- UGent Geconcentreeerde Onderzoekacties GOA Grant [01G00710]
- Fonds Wetenschappelijk Onderzoek FWO Vlaanderen
- FWO Vlaanderen
- BOF-UGent [GOA 01G01513]
- Hercules Foundation [AUGE/09/014]
- Hercules foundation of the Flemish government
- Belgian Interuniversitaire Attractie Pool-Pole d'Attraction Interuniversitaire IAP-PAI network
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 N-2 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.
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