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Main Title: Particle shape optimization by changing from an isotropic to an anisotropic nanostructure: preparation of highly active and stable supported Pt catalysts in microemulsions
Author(s): Parapat, Riny Y.
Wijaya, Muliany
Schwarze, Michael
Selve, Sören
Willinger, Marc
Schomäcker, Reinhard
Type: Article
Language Code: en
Abstract: We recently introduced a new method to synthesize an active and stable Pt catalyst, namely thermo-destabilization of microemulsions (see R. Y. Parapat, V. Parwoto, M. Schwarze, B. Zhang, D. S. Su and R. Schomäcker, J. Mater. Chem., 2012, 22 (23), 11605–11614). We are able to produce Pt nanocrystals with a small size (2.5 nm) of an isotropic structure i.e. truncated octahedral and deposit them well on support materials. Although we have obtained good results, the performance of the catalyst still needed to be improved and optimized. We followed the strategy to retain the small size but change the shape to an anisotropic structure of Pt nanocrystals which produces more active sites by means of a weaker reducing agent. We found that our catalysts are more active than those we reported before and even show the potential to be applied in a challenging reaction such as hydrogenation of levulinic acid.
Issue Date: 2013
Date Available: 27-Jun-2016
DDC Class: 600 Technik, Technologie
Sponsor/Funder: DFG, EXC 314, Unifying Concepts in Catalysis
Journal Title: Nanoscale
Publisher: Royal Society of Chemistry
Publisher Place: Cambridge
Volume: 5
Issue: 2
Publisher DOI: 10.1039/c2nr32122j
Page Start: 796
Page End: 805
EISSN: 2040-3364
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Mehrphasenreaktionstechnik » Publications

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