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- Title
Ag–CeO<sub>2</sub>/α-Al<sub>2</sub>O<sub>3</sub> Catalyst for Production of γ-Butyrolactone from Tetrahydrofuran.
- Authors
Liu, J. Q.; Wang, G. Sh.
- Abstract
The selective oxidation of tetrahydrofuran to γ-butyrolactone is an efficient method to convert biomass derivatives into high-value chemicals. In order to improve the efficacy of conversion of tetrahydrofuran to γ-butyrolactone, this study prepared an Ag–CeO2/α-Al2O3 catalyst via the impregnation method and used a solvent-free approach to convert tetrahydrofuran to γ-butyrolactone. And the conversion rate of 100% of raw material was achieved. The prepared catalyst was characterized by TEM, XRD, N2 adsorption-desorption and XPS, in order to better understand the performance of the catalysts. The results demonstrated that Ce3+ and Ce4+ coexist on the surface of the catalyst and verified the existence of metallic Ag (Ag0) in Ag–CeO2/α-Al2O3 catalyst. The reaction mechanism of the formation of γ-butyrolactone by γ-site switch (ring-opening and ring-closing) of tetrahydrofuran was deduced. This is attributed to the synergistic action of Ag and Ce. γ-Site switch effect (ring-opening and ring-closing) is proposed for the first time in this paper.
- Subjects
TETRAHYDROFURAN; CATALYSTS; CHEMICAL derivatives; X-ray diffraction; METALLIC surfaces; RAW materials
- Publication
Russian Journal of General Chemistry, 2023, Vol 93, Issue 8, p2177
- ISSN
1070-3632
- Publication type
Article
- DOI
10.1134/S1070363223080261