期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 9, 期 46, 页码 15603-15611出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.1c05771
关键词
biomass; levulinic acid; 2-butanol; hydrogenolysis; DFT
资金
- National Key R&D Program of China [2019YFD1100601]
- National Natural Science Foundation of China [21878290]
In this study, Ni-based bimetallic catalysts were prepared and the NiMn catalyst showed the highest efficiency with an 84.5% yield of 2-butanol under optimal conditions. The synergy between Ni-0 and Mn2+ species on the modified surface contributed to the high affinity of the catalyst towards adsorbing LA and LA-derived molecules, as confirmed by density functional theory calculations.
Selective production of 2-butanol from levulinic acid (LA) hydro-genolysis over a non-precious catalyst is long desirable. However, the process requires the precious metal Ru, and the yield of 2-butanol was less than 65%. Herein, we prepared Ni-based bimetallic catalysts, among which the NiMn catalyst exhibited the highest efficiency and reached an 84.5% yield of 2-butanol at 100% LA conversion under optimal conditions. The electronic states and surface properties were characterized by various techniques such as X-ray diffraction, X-ray photoelectron spectroscopy, temperature-programmed desorption, temperatureprogrammed reduction, and scanning electron microscopy/transmission electron microscopy. The high efficiency of the NiMn catalyst was due to the synergy between Ni-0 and Mn2+ species, and the modified surface showed a high basicity and a high affinity to adsorb LA and LA-derived molecules with C = O or COOH. The high affinity of the NiMn catalyst was further confirmed by density functional theory calculations.
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