Isomerization of glucose to fructose catalyzed by metal–organic frameworks
[EN] The isomerization reaction of glucose to fructose was studied using five selected metal–organic frameworks (MOFs) as catalysts and a mixture of γ-valerolactone and 10% H2O as solvent. MOFs with different metal cations (Cr3+, Al3+, Cu2+, and Fe3+) were tested between 100 and 140 °C. The activity...
| Authors: | , , , , , |
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| Format: | article |
| Publication Date: | 2021 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/253180 |
| Online Access: | http://hdl.handle.net/10261/253180 |
| Access Level: | Open access |
| Keyword: | Isomerization Glucose Fructose |
| Summary: | [EN] The isomerization reaction of glucose to fructose was studied using five selected metal–organic frameworks (MOFs) as catalysts and a mixture of γ-valerolactone and 10% H2O as solvent. MOFs with different metal cations (Cr3+, Al3+, Cu2+, and Fe3+) were tested between 100 and 140 °C. The activity tests show that the MOF with chromium yields a higher amount of fructose. A comparison between MIL-101(Cr) and MIL-53(Cr) shows a higher yield of fructose with MIL-101(Cr) (23% at 140 °C) in a short reaction time, due to the higher pore size of the MOF structure. The stability of this catalyst was confirmed, and it could be recycled 5 times without a significant loss of activity and exhibited an excellent fructose yield of 23–35% after 1 h of the reaction. In this work, the superior results found are due to the large porous MIL-101(Cr) catalyst combined with aprotic solvents (γ-valerolactone−10% H2O). |
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