Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 5, Issue 3, Pages 2172-2180Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.6b02343
Keywords
Furfural; Furfuryl alcohol; Cu catalyst; Sulfonate group; Liquid phase; Hydrogenation
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Funding
- Natural Science Foundation of China [51502297, 51372248, 51432009]
- Instrument Developing Project of the Chinese Academy of Sciences [yz201421]
- CAS/SAFEA International Partnership Program for Creative Research Teams of Chinese Academy of Sciences, China
- CAS Pioneer Hundred Talents Program
- Potential Program (Hefei Science Center, CAS) [2015HSC-UP006]
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A copper-based catalyst, which was supported by sulfonate group (-SO3H) grafted active carbon (AC), was prepared and activated simultaneously by liquid phase chemical reduction method. The modified copper catalyst, Cu/AC-SO3H, displayed an enhanced catalytic performance for selective hydrogenation of furfural (FAL) to furfuryl alcohol (FOL) in liquid phase, in which almost 100% FOL yield was obtained at 378 K and 0.4 MPa of hydrogen pressure after 120 min reaction. The effect of SO3H was evaluated and illustrated by the combination of reaction performance and physicochemical characterizations, such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectrometer (XPS) measurements. Through grafting sulfonate group on the support, better dispersion of nanoparticles, higher reduction degree stronger adsorption of FAL can be attained to contribute high hydrogenation performance. In addition, the effects conditions (such as reaction temperature, H-2 pressure, reaction time, solvent, and catalyst to FAL mass ratio) were evaluated intensively. Also, the Cu/AC SO3H catalyst showed an excellent catalytic performance for transfer hydrogenation of FAL, in which 2-propanol was utilized as the solvent and hydrogen donor concurrently. Cycling test proved the prepared catalyst Could be recycled and reused for several times without noticeably reduced catalytic activity of hydrogenation.
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