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Abstract:
Ni/NiO-MC (MC = mesoporous carbon), with Ni and NiO nanoparticles well distributed on MC, has been successfully synthesized by pyrolysis of a Ni/mesostructured polymer framework precursor preparedviaan ion-exchange process between Ni2+in [Ni(NH3)6]2+and H+in the polymeric gel. Due to the synergistic effect played by Ni, NiO and MC, the as-synthesized Ni/NiO-MC showed superior performance for the transfer hydrogenation of levulinic acid (LA) to produce γ-valerolactone (GVL), with 99.9% of LA converted and a yield of 99.5% to GVL at 200 °C over Ni/NiO-MC with a Ni : LA molar ratio of 1 : 50. Even with only a small loading amount of Ni (1.12 wt%) in Ni/NiO-MC, the as-obtained Ni/NiO-MC still show a high turnover frequency (TOF) of 10.80 h−1for the formation of GVL, comparable to those previously reported over Ni-based catalysts (with a Ni amount ranging from 15 to 65 wt%) for transfer hydrogenation of LA to produce GVL. This study not only provides an efficient and economical Ni-based catalytic system for the hydrogenation of LA to produce GVL, but also highlights the great potential of using MC as an ideal support in fabricating highly efficient catalytic systems. © The Royal Society of Chemistry 2021.
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Sustainable Energy and Fuels
Year: 2021
Issue: 13
Volume: 5
Page: 3312-3320
Cited Count:
SCOPUS Cited Count: 11
ESI Highly Cited Papers on the List: 0 Unfold All
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Chinese Cited Count:
30 Days PV: 0
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