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

被引：15
|
作者：
Kuhaudomlap, Sasithorn [1 ]
Mekasuwandumrong, Okorn [2 ]
Praserthdam, Piyasan [1 ]
Fujita, Shin-Ichiro [3 ]
Arai, Masahiko [3 ]
Panpranot, Joongjai [1 ]
机构：
[1] Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Ctr Excellence Catalysis & Catalyt React Engn, Bangkok 10330, Thailand
[2] Silpakorn Univ, Fac Engn & Ind Technol, Dept Chem Engn, Nakhon Pathom 73000, Thailand
[3] Hokkaido Univ, Fac Engn, Div Appl Chem, Sapporo, Hokkaido 0608628, Japan
来源：
CATALYSTS | 2018年 / 8卷 / 02期
基金：
日本学术振兴会;
关键词：
Pt/TiO2; nitrostyrene hydrogenation; sol-gel TiO2; strong electrostatic adsorption; CHEMOSELECTIVE HYDROGENATION; PT/TIO2; CATALYSTS; PERFORMANCE; TI3+; PHOTOCATALYSIS; NANOPARTICLES; ACETYLENE; TITANIA; PD/TIO2; STEP;
D O I：
10.3390/catal8020087
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The H-2-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.
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页数：12
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