Fast Catalytic Hydrogenation of 2,5-Hydroxymethylfurfural to 2,5-Dimethylfuran with Ruthenium on Carbon Nanotubes
| Autor: | Piera Demma Carà, Nor Azam Endot, Peter Priecel, Jose Antonio Lopez-Sanchez |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Chemistry
General Chemical Engineering 2 5-Dimethylfuran Nanoparticle chemistry.chemical_element 02 engineering and technology General Chemistry Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences law.invention Ruthenium Catalysis chemistry.chemical_compound Physisorption Chemical engineering Chemisorption law medicine 0210 nano-technology Activated carbon medicine.drug |
| Zdroj: | Industrial & Engineering Chemistry Research. 57:1991-2002 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | We have found that the utilization of carbon nanotubes as support for ruthenium nanoparticles increases hydrogenation activity over 40 times in terms of turnover frequency (TOF) when compared to activated carbon in the transformation of hydroxymethylfurfural to dimethylfuran. Catalysts based on carbon nanotubes produced 83.5% yield of dimethylfuran (TOF 819.7 h–1) in under 1 h at 150 °C and less than 20 bar hydrogen pressure, whereas the activated carbon catalyst required more than 3 h to give an 80% yield of dimethylfuran (TOF 36 h–1). The superior accessibility of pores in carbon nanotubes, plus an electronic promotional effect in the carbon nanotubes, appear to be responsible for the superior activity of the catalysts supported on carbon nanotubes. The catalysts were synthesized by impregnation and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, nitrogen physisorption, temperature-programmed reduction, electron microscopy and pulse CO chemisorption to propose the structure–activit... |
| Databáze: | OpenAIRE |
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