Preparation of Ni/SiO catalyst in ionic liquids for hydrogenation

doi:10.1007/s11705-008-0013-4

Front. Chem. Sci. Eng.

2008, Vol. 2

Issue (1) : 63-68 https://doi.org/10.1007/s11705-008-0013-4

Preparation of Ni/SiO catalyst in ionic liquids for hydrogenation

FAN Qingming, LIU Yingxin, ZHENG Yifan, YAN Wei

State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology;

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Abstract A series of silica supported nickel catalysts were prepared from nickel nitrate and tetraethyl orthosilicate by the sol-gel method with the imidazolium type ionic liquids as solvents. The catalysts were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Their catalytic performances for the selective hydrogenation of cinnamaldehyde to hydrocinnamaldehyde were investigated. The results show that the Ni/SiO₂ catalyst prepared with 1-(2-hydroxyethyl)-3-methyl-imidazole tetrafluoroborate ionic liquid as solvent exhibits the highest catalytic activity for the reaction. Under the optimal conditions of catalyst dosage (based on the mass of cinnamaldehyde used) 10%, reaction pressure 2 MPa, temperature 373 K and reaction time 2 h, the conversion of cinnamaldehyde and the selectivity to hydrocinnamaldehyde can reach 97.6% and 98.8%, respectively.

Issue Date: 05 March 2008

Cite this article:

LIU Yingxin,FAN Qingming,ZHENG Yifan, et al. Preparation of Ni/SiO catalyst in ionic liquids for hydrogenation[J]. Front. Chem. Sci. Eng., 2008, 2(1): 63-68.

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https://academic.hep.com.cn/fcse/EN/10.1007/s11705-008-0013-4
https://academic.hep.com.cn/fcse/EN/Y2008/V2/I1/63

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