Abstract:The direct conversion of glucose to 5‐hydroxymethylfurfural (HMF) is a crucial process in biorefinery. However, it still suffers from the rational design of highly efficient catalysts for one‐pot HMF production. Herein, the pioneering design of bifunctional hafnium (Hf)‐incorporated zeolites with fine‐tuned Brønsted/Lewis acidity and hierarchical features has been illustrated via one‐pot hydrothermally prepared protocols. Most importantly, the rationally designed catalyst presents the highly dispersed isolated… Show more
“…Moreover, due to the formation of the more stable [DMSO-H] + complex responsible for the selective conversion of glucose into HMF, the solvent of DMSO was more favorable over dioxane, GVL and tetrahydrofuran. 144,151 In summary, 5-HMF can be obtained by one-pot conversion of glucose on bifunctional heterogeneous catalysts containing both LASs and BASs. The fine-tuning balance between LASs and BASs as well as the appropriate pore size is essential to enhance the catalytic performance.…”
Section: Conversion Of Hexosesmentioning
confidence: 99%
“…The best catalytic performance was demonstrated on Hf-HBEA in DMSO solvents, which showed a glucose conversion of 95.4% and a 5-HMF selectivity of 65.8% at 120 °C for 24 h reaction. 151 Fig. 17 One-pot synthesis of 5-HMF from glucose via glucose isomerization and subsequent dehydration on bifunctional catalysts.…”
Section: Conversion Of Hexosesmentioning
confidence: 99%
“…In addition, the effects of different frameworks were compared using Hf-Beta nanocrystals (Hf-HBEA-NC) and Hf-MFI nanosheets (Hf-HZSM-5-NS). 151 The small pore diameter of Hf-HZSM-5-NS limited the accessibility of bulky glucose to active sites, leading to remarkably lower conversion relative to Hf-HBEA-NC. Then, the catalytic performances of Hf-HBEA-NC and Sn-HBEA-NC were further compared (Table 4, entries 9 and 10).…”
Section: Application Of Heteroatom Metal Zeolites In the Conversion O...mentioning
confidence: 99%
“…Moreover, due to the formation of the more stable [DMSO-H] + complex responsible for the selective conversion of glucose into HMF, the solvent of DMSO was more favorable over dioxane, GVL and tetrahydrofuran. 144,151…”
Section: Application Of Heteroatom Metal Zeolites In the Conversion O...mentioning
confidence: 99%
“…The best catalytic performance was demonstrated on Hf-HBEA in DMSO solvents, which showed a glucose conversion of 95.4% and a 5-HMF selectivity of 65.8% at 120 °C for 24 h reaction. 151…”
Section: Application Of Heteroatom Metal Zeolites In the Conversion O...mentioning
Heteroatom (such as Ti, Sn, Zr, Hf and others) Lewis acid zeolites contain Lewis acid site (LAS) centers with tetrahedral coordination confined in micropores of zeolites with varied pore topology,...
“…Moreover, due to the formation of the more stable [DMSO-H] + complex responsible for the selective conversion of glucose into HMF, the solvent of DMSO was more favorable over dioxane, GVL and tetrahydrofuran. 144,151 In summary, 5-HMF can be obtained by one-pot conversion of glucose on bifunctional heterogeneous catalysts containing both LASs and BASs. The fine-tuning balance between LASs and BASs as well as the appropriate pore size is essential to enhance the catalytic performance.…”
Section: Conversion Of Hexosesmentioning
confidence: 99%
“…The best catalytic performance was demonstrated on Hf-HBEA in DMSO solvents, which showed a glucose conversion of 95.4% and a 5-HMF selectivity of 65.8% at 120 °C for 24 h reaction. 151 Fig. 17 One-pot synthesis of 5-HMF from glucose via glucose isomerization and subsequent dehydration on bifunctional catalysts.…”
Section: Conversion Of Hexosesmentioning
confidence: 99%
“…In addition, the effects of different frameworks were compared using Hf-Beta nanocrystals (Hf-HBEA-NC) and Hf-MFI nanosheets (Hf-HZSM-5-NS). 151 The small pore diameter of Hf-HZSM-5-NS limited the accessibility of bulky glucose to active sites, leading to remarkably lower conversion relative to Hf-HBEA-NC. Then, the catalytic performances of Hf-HBEA-NC and Sn-HBEA-NC were further compared (Table 4, entries 9 and 10).…”
Section: Application Of Heteroatom Metal Zeolites In the Conversion O...mentioning
confidence: 99%
“…Moreover, due to the formation of the more stable [DMSO-H] + complex responsible for the selective conversion of glucose into HMF, the solvent of DMSO was more favorable over dioxane, GVL and tetrahydrofuran. 144,151…”
Section: Application Of Heteroatom Metal Zeolites In the Conversion O...mentioning
confidence: 99%
“…The best catalytic performance was demonstrated on Hf-HBEA in DMSO solvents, which showed a glucose conversion of 95.4% and a 5-HMF selectivity of 65.8% at 120 °C for 24 h reaction. 151…”
Section: Application Of Heteroatom Metal Zeolites In the Conversion O...mentioning
Heteroatom (such as Ti, Sn, Zr, Hf and others) Lewis acid zeolites contain Lewis acid site (LAS) centers with tetrahedral coordination confined in micropores of zeolites with varied pore topology,...
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