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Ag–CeO2/α-Al2O3 Catalyst for Production of γ-Butyrolactone from Tetrahydrofuran.
- Source :
-
Russian Journal of General Chemistry . Aug2023, Vol. 93 Issue 8, p2177-2184. 8p. - Publication Year :
- 2023
-
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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10703632
- Volume :
- 93
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Russian Journal of General Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 172841688
- Full Text :
- https://doi.org/10.1134/S1070363223080261