Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration

Haolin Sun; Fei Song; Chunmei Zhou; Xiaoyue Wan; Yuguang Jin; Yihu Dai; Jianwei Zheng; Siyu Yao; Yanhui Yang

Catalysis Communications (Jan 2021)

Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration

Haolin Sun,
Fei Song,
Chunmei Zhou,
Xiaoyue Wan,
Yuguang Jin,
Yihu Dai,
Jianwei Zheng,
Siyu Yao,
Yanhui Yang

Affiliations

Haolin Sun: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China
Fei Song: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China
Chunmei Zhou: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China; Corresponding authors.
Xiaoyue Wan: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China
Yuguang Jin: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China
Yihu Dai: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China
Jianwei Zheng: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China
Siyu Yao: Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China; Corresponding authors.
Yanhui Yang: Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR China; State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 73000, PR China; Corresponding author at: School of Chemistry and Molecular Engineering (SCME), Institute of Advanced Synthesis (IAS), The Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.

Journal volume & issue: Vol. 149
p. 106254

Abstract

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Herein, hydrated WO3 was synthesized by hydrothermal method, and the relationship between its structure and acidity was explored. The numbers of Brønsted acid sites (BAS) and Lewis acid sites (LAS) can be modulated by adjusting the lattice water content of WO3·nH2O. Mechanism studies shown that the density of BAS and diffusion effect have a synergistic effect on the activity of dehydration reaction. The optimized WO3·0.5H2O catalyst in the presence of both high BAS density and high BAS accessibility afforded 73% 5-hydroxymethylfurfural (HMF) yield, and almost no deactivation appeared after five cycles. Nearly twice higher turnover frequency (TOF) and 50% higher HMF selectivity were observed in comparison to anhydrous WO3.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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