Mesoporous Copper-Cerium Mixed Oxide Catalysts for Aerobic Oxidation of Vanillyl Alcohol
نویسندگان
چکیده
The production of vanillin from lignin-derived vanillyl alcohol poses a great deal research interest because the availability renewable lignin in abundant quantities. In present study, series copper-doped ceria (CeO2) catalysts were prepared by modified template-assisted method, characterized various techniques, and explored for oxidation to with molecular oxygen as oxidant at normal atmospheric pressure. Interestingly, 10% Cu-doped (Cu0.1Ce0.9O2−δ) catalyst exhibited superior catalytic activity 95% 100% conversions moderate pressures, respectively, selectivity both cases. A thorough characterization (XRD, BET surface area, Raman spectroscopy, SEM, TEM, XPS, H2-TPR) synthesized mesoporous oxides (CuO, CeO2, Cu0.05Ce0.95O2−δ, Cu0.1Ce0.9O2−δ, Cu0.15Ce0.85O2−δ) revealed that mixed oxide exhibit more vacancies better redox behavior comparison single oxides, which lead improved selectivity. Reaction parameters, such reaction temperature, time, amount, solvent, also optimized reaction.
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ژورنال
عنوان ژورنال: Catalysts
سال: 2023
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal13071058