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Cu-Ga2O3 nanoparticles supported on ordered mesoporous silica for the catalytic hydrogenation of cinnamaldehyde
被引:0
|作者:
Ciotonea, Carmen
[1
,2
,3
]
Chirieac, Alexandru
[1
]
Dragoi, Brindusa
[1
]
Catrinescu, Cezar
[1
]
Royer, Sebastien
[2
]
Ungureanu, Adrian
[1
]
机构:
[1] Gheorghe Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect Cristofor Simione, 73 Prof D Mangeron Bvd, Iasi 700050, Romania
[2] Univ Artois, Univ Lille, CNRS, UCCS Unite Catalyse & Chim Solide,Cent Lille,UMR 8, F-59000 Lille, France
[3] Univ Littoral Cote dOpale, Unite Chim Environm & Interact Vivant UCEIV, UR4492, CNRS,SFR Condorcet FR 3417, 145 Ave Maurice Schumann, F-59140 Dunkerque, France
关键词:
Copper;
Gallium;
Nanoparticles;
SBA-15;
Hydrogenation;
Cinnamaldehyde;
COPPER-BASED CATALYSTS;
SELECTIVE HYDROGENATION;
CHEMOSELECTIVE HYDROGENATION;
UNSATURATED ALDEHYDES;
P123;
SURFACTANT;
NANOPARTICLES;
CU;
GA;
CO2;
TEMPERATURE;
D O I:
10.5802/crchim.141
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Herein, we show that gallium oxide can function as an efficient promoter for the Cu-catalysed hydrogenation of cinnamaldehyde. SBA-15-supported Cu-Ga2O3 nanoparticles with a constant Cu loading of 5 wt% and two Cu/Ga weight ratios of 5 and 2, respectively, were synthesised by incipient wetness impregnation followed by mild drying. Physico-chemical characterisation revealed that the metal dispersion, and thus the active surface area of copper, can be enhanced nine-fold upon the addition of gallium promoter, boosting the catalytic activity as compared with the unpromoted Cu/SBA-15 catalyst. Likewise, the presence of Ga2O3 improved the selectivity to cinnamyl alcohol.
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页码:81 / 94
页数:15
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