Efficient Vapor‐Phase Selective Hydrogenolysis of Bio‐Levulinic Acid to γ‐Valerolactone Using Cu Supported on Hydrotalcite Catalysts
| Autor: | K. V. Raghava Chary, Suresh Mutyala, Rajender Boddula, Harisekhar Mitta, Abdullah M. Asiri, Inamuddin, Prem Kumar Seelam |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Hydrotalcite
Full Paper 010405 organic chemistry Chemistry Thermal desorption spectroscopy hydrogenolysis Full Papers 010402 general chemistry 01 natural sciences 7. Clean energy catalysts 0104 chemical sciences Catalysis chemistry.chemical_compound Ammonia Hydrogenolysis hydrotalcite Levulinic acid Titration γ‐valerolactone Selectivity bio‐levulinic acid Nuclear chemistry |
| Zdroj: | Global Challenges (Hoboken, Nj) |
| ISSN: | 2056-6646 |
| Popis: | In this work, Cu nanoparticles (Cu NPs, 2‐20 nm) supported on Hydrotalcite catalysts exhibit enhanced selectivity for γ‐valerolactone (GVL) during hydrogenolysis of levulinic acid (LA). At 260 °C, over 3 wt% Cu achieved 87.5% of LA conversion with a maximum GVL selectivity (95%). In contrast, LA hydrogenolysis over 3Cu/Hydrotalcite catalyst is highly active and stable toward the production of GVL due to balanced acido‐basicity and higher Cu dispersion with ultrasmall particle sizes, which are investigated through the temperature programmed desorption (TPD) of ammonia, N2O titration, and transmission electron microscopy (TEM) analysis. Hydrotalcite in combination with inexpensive Cu catalyst is found to be an efficient and environmentally benign for LA hydrogenolysis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text