Chromium-free Cu@Mg/γ-Al2O3 – an active catalyst for selective hydrogenation of furfural to furfuryl alcohol
| Autor: | Chanchal Samanta, R. Arundhathi, Panyala Linga Reddy, Bharat L. Newalkar |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Auger electron spectroscopy
Chemistry General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Furfural 01 natural sciences 0104 chemical sciences Catalysis Furfuryl alcohol chemistry.chemical_compound Chromium Desorption Temperature-programmed reduction 0210 nano-technology Selectivity Nuclear chemistry |
| Zdroj: | RSC Advances. 10:41120-41126 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/d0ra08754h |
| Popis: | Development of a chromium (Cr)-free hydrogenation catalyst is very important to replace the existing hazardous Cr based catalyst used in the furfural hydrogenation to furfuryl alcohol. Herein, we report synthesis of well-dispersed copper nanoparticles supported on hydrothermally stable magnesium doped alumina (Cu@Mg/γ-Al2O3) for selective hydrogenation of furfural to furfuryl alcohol. The prepared catalyst was characterized by X-ray Photoelectron Spectroscopy (XPS), Auger Electron Spectroscopy (AES), Powder X-ray Diffraction (PXRD), Surface Area Analysis (SAA), High Resolution-Transmission Electron Microscopy (HR-TEM), Temperature Programmed Reduction/Desorption (TPR/TPD) and Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) to understand textural properties of the catalyst. The prepared catalyst was found to be highly active and selective with 99% conversion of furfural and 94% selectivity for furfuryl alcohol under solvent free conditions at 443.15 K and 2 MPa of hydrogen pressure. It was also observed that the Cu@Mg/γ-Al2O3 catalyst is reusable (up to six runs) while maintaining its high activity and selectivity (≥94%) in the hydrogenation of furfural to furfuryl alcohol. |
| Databáze: | OpenAIRE |
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