2023 Fiscal Year Research-status Report
Direct synthesis of 5-hydroxymethylfurfural (HMF) hydrogenated derivatives from fructose by designing multifunctional tandem catalysts
| Project/Area Number |
22K14720
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| Research Institution | Osaka Metropolitan University |
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Principal Investigator |
陳 鵬茹 大阪公立大学, 大学院工学研究科, 特任助教 (80898023)
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| Project Period (FY) |
2022-04-01 – 2025-03-31
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| Keywords | Biomass conversion / HMF derivatives / Acid-metal catalyst / Hydrogenation |
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| Outline of Annual Research Achievements |
The direct conversion of cellulose-derived fructose to 5-hydroxymethylfurfural (HMF) hydrogenated derivatives is of importance considering the sustainable utilization of biomass. As we have previously found that FeOx modified Cu/SiO2 catalyst presented high selectivity towards the hydrogenation of C=O bonds while leaving C-OH unchanged, producing 2,5-bis(hydroxymethyl)furan (BHMF) as the main products. The Cu-FeOx/SiO2 catalyst was then further modified via various methods in order to introduce Bronsted acid on the catalyst to access the dehydration of fructose to HMF. We found that by the modification by using Na2HPO4, desired acid sites were loaded on the catalyst and showed the activity for the formation of BHMF form fructose, although the yield was slightly lower compared to that in the literatures.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The effort has been made for the acid modification of the Cu-FeOx/SiO2 catalyst to achieve the direct formation of 2,5-bis(hydroxymethyl)furan (BHMF) from fructose. Modification by using Na2HPO4 gave desired the performance however, the acidity was slightly moderate and further improvement the acidity is necessary to achieve high activity.
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| Strategy for Future Research Activity |
The next strategy to achieve the goal of this study is to further improve the acidity of the Cu-FeOx/SiO2 catalyst to enhance the activity of fructose dehydration to HMF. Furthermore, the production of 2,5-dimethylfuran (DMF) from fructose will also be investigated. We have found that FeOx modified Ru/SiO2 catalysts were confirmed to be effective for the C-O bond cleavage, which was good for the hydrogenolysis of HMF to 2,5-dimethylfuran (DMF). Therefore, acid modification will also be conducted to Ru-FeOx/SiO2 catalyst to achieve fructose dehydration to DMF. The results will be prepared and submitted to the international journal.
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| Causes of Carryover |
The plan for using the budget has been slightly reconsidered due to the schedule of the attendance of conference. The remaining amount will be used to for the travel expenses to attend the international conference on catalysis and buy necessary equipment and chemicals for the final fiscal year.
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