Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration
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...
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doaj-b2f8e7f5001a439ea9d08dda82dfe7e42021-03-19T07:03:51ZengElsevierCatalysis Communications1873-39052021-01-01149106254Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydrationHaolin Sun0Fei Song1Chunmei Zhou2Xiaoyue Wan3Yuguang Jin4Yihu Dai5Jianwei Zheng6Siyu Yao7Yanhui Yang8Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR ChinaInstitute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR ChinaInstitute 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.Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR ChinaInstitute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR ChinaInstitute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR ChinaInstitute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, PR ChinaKey Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China; Corresponding authors.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.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.http://www.sciencedirect.com/science/article/pii/S1566736720303307WO3 hydratesLattice waterBronsted acidFructose dehydration |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Haolin Sun Fei Song Chunmei Zhou Xiaoyue Wan Yuguang Jin Yihu Dai Jianwei Zheng Siyu Yao Yanhui Yang |
spellingShingle |
Haolin Sun Fei Song Chunmei Zhou Xiaoyue Wan Yuguang Jin Yihu Dai Jianwei Zheng Siyu Yao Yanhui Yang Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration Catalysis Communications WO3 hydrates Lattice water Bronsted acid Fructose dehydration |
author_facet |
Haolin Sun Fei Song Chunmei Zhou Xiaoyue Wan Yuguang Jin Yihu Dai Jianwei Zheng Siyu Yao Yanhui Yang |
author_sort |
Haolin Sun |
title |
Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration |
title_short |
Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration |
title_full |
Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration |
title_fullStr |
Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration |
title_full_unstemmed |
Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration |
title_sort |
lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration |
publisher |
Elsevier |
series |
Catalysis Communications |
issn |
1873-3905 |
publishDate |
2021-01-01 |
description |
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. |
topic |
WO3 hydrates Lattice water Bronsted acid Fructose dehydration |
url |
http://www.sciencedirect.com/science/article/pii/S1566736720303307 |
work_keys_str_mv |
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