Al-Doping Promoted Aerobic Amidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxamide over Cryptomelane
| Autor: | Xiuquan Jia, Yizheng Huang, Xu Yongming, Jie Xu, Fei Xia, Jiping Ma, Xiaofang Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nitrile
Renewable Energy Sustainability and the Environment General Chemical Engineering 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Cascade reaction Alcohol oxidation engineering Environmental Chemistry Cryptomelane Reactivity (chemistry) 0210 nano-technology Ammoxidation Nuclear chemistry |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 6:8048-8054 |
| ISSN: | 2168-0485 |
| DOI: | 10.1021/acssuschemeng.8b01617 |
| Popis: | Liquid-phase ammoxidation of biomass-derived platform compound 5-hydroxymethylfurfural (HMF) provides a sustainable route for the synthesis nitrogen-containing chemicals from renewable resources. A series of metal-cation-doped (In3+, Cr3+, Co2+, Ni2+, Cu2+, Zn2+, Al3+) cryptomelanes ([M]-K-OMS-2) were prepared and used as catalyst for the aerobic ammoxidation-hydration tandem reaction of HMF to 2,5-furandicarboxamide. Al-doped K-OMS-2 prepared with the refluxing method showed enhanced catalytic performance in comparison with K-OMS-2. Kinetic experiments indicated that the efficient synthesis of 2,5-furandicarboxamide over 0.15[Al]-K-OMS-2 catalyst was attributed to its higher activity on slow steps of alcohol oxidation and nitrile hydration during the amidation reaction of HMF. The results of XPS, O2-TPD-MS, and NH3-TPD-MS indicated that the Al-doping increased the lattice oxygen reactivity and the strength of strong acid sites, which were responsible for the enhanced efficiency of 0.15[Al]-K-OMS-2. |
| Databáze: | OpenAIRE |
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