Synthesis, characterization and catalytic activity estimation of WO3/MeO2 (Me: Zr, Ti, Si) oxides for fructose conversion reaction into 5-hydroxymethylfurfural

Pham Thi Hoa; Pham Thi Thanh Ngan; Nguyen Thanh Binh

doi:10.51316/jca.2021.054

Authors

Pham Thi Hoa Hanoi University of Science, Viet Nam National University | Vietnam Maritime University Author
Pham Thi Thanh Ngan Hanoi University of Science, Viet Nam National University Author
Nguyen Thanh Binh Hanoi University of Science, Viet Nam National University Author

DOI:

https://doi.org/10.51316/jca.2021.054

Keywords:

5-hydroxymethylfurfural, fructose, zirconia, titania, tungsten oxide

Abstract

Series of WO₃/MeO₂(Me: Zr, Ti, Si) oxides were synthesized by impregnationmethod with 1:9 atomic ration of W:Me.The oxides were characterized by various techniques such as XRD, IR. The XRD patterns showed the crystalline structure of ZrO₂, TiO₂,WO₃ and amorphous of SiO₂. They were formed in tetragonal, anatase, monoclinic phase structure. All oxide and mixed oxides were estimated its catalytic activity through fructose conversion into 5-hydroxymethylfurfural in DMSO solvent. The results indicated that all mixed oxides owned good catalytic activity for the reaction in comparison with case of only presence DMSO solvent. Especially, The oxide WO₃/ZrO₂ showed the best HMF yield, 81,6%, at experimental conditions. This property could be due to the well dispersionand acidity of nano cluster WO₃ on the surface s of oxides MeO₂.

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