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Open AccessArticle

The H2-Treated TiO2 Supported Pt Catalysts Prepared by Strong Electrostatic Adsorption for Liquid-Phase Selective Hydrogenation

1
Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
2
Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakorn Pathom 73000, Thailand
3
Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
*
Author to whom correspondence should be addressed.
Catalysts 2018, 8(2), 87; https://doi.org/10.3390/catal8020087
Received: 15 January 2018 / Revised: 2 February 2018 / Accepted: 6 February 2018 / Published: 22 February 2018
(This article belongs to the Special Issue Active Sites in Catalytic Reaction)
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Abstract

The H2-treated TiO2 supported Pt catalysts were prepared by strong electrostatic adsorption method and tested in the liquid-phase selective hydrogenation of various organic compounds such as 3-nitrostyrene to vinylaniline (VA) and furfural to furfuryl alcohol (FA). A combination of high Pt dispersion, strong interaction of Pt-TiOx, and the presence of low coordination Pt sites was necessary for high hydrogenation activity. However, while the selectivity of VA in 3-nitrostyrene hydrogenation did not depend much on the catalyst preparation method used, the selectivity of FA in furfural hydrogenation was much higher when the catalysts were prepared by SEA, comparing to those obtained by impregnation in which the solvent product was formed, due probably to the non-acidic conditions used during Pt loading by SEA method. View Full-Text
Keywords: Pt/TiO2; nitrostyrene hydrogenation; sol-gel TiO2; strong electrostatic adsorption Pt/TiO2; nitrostyrene hydrogenation; sol-gel TiO2; strong electrostatic adsorption
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Kuhaudomlap, S.; Mekasuwandumrong, O.; Praserthdam, P.; Fujita, S.-I.; Arai, M.; Panpranot, J. The H2-Treated TiO2 Supported Pt Catalysts Prepared by Strong Electrostatic Adsorption for Liquid-Phase Selective Hydrogenation. Catalysts 2018, 8, 87.

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