New catalyst with multiple active sites for selective hydrogenolysis of cellulose to ethylene glycol
| Autor: | Murad Eissa, Sherif M.A.S. Keshk, Mohamed S. Hamdy |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Chemistry Inorganic chemistry Nanoparticle 010402 general chemistry 01 natural sciences Pollution 0104 chemical sciences Catalysis Solvent chemistry.chemical_compound Physisorption Hydrogenolysis Environmental Chemistry Cellulose Mesoporous material Ethylene glycol Nuclear chemistry |
| Zdroj: | Green Chem.. 19:5144-5151 |
| ISSN: | 1463-9270 1463-9262 |
| Popis: | Three different metals were successfully incorporated into the mesoporous siliceous material, TUD-1, for the first time. One-pot synthesis was applied to incorporate isolated Al3+, nanoparticles of WO3, and nanoparticles of metallic Ni with different loadings into TUD-1. The prepared materials were characterized by means of elemental analysis, XRD, N2 physisorption, NH3-TPD, SEM, EDX and TEM. Characterization data confirmed the incorporation of isolated Al3+ ions in the framework of TUD-1, in addition to metallic Ni (3–5 nm) and WO3 (10–15 nm) nanoparticles inside the pores of TUD-1 matrix. Moreover, extra-framework WO3 particles (0.5–1 μm) were also detected. The catalytic activity of the prepared samples was evaluated in the selective hydrogenolysis of cellulose into ethylene glycol at 503 K under 4 MPa of H2 pressure in the presence of water as a solvent. The catalyst with the multiple active sites exhibited the highest cellulose conversion (100%) after reaction for 90 min and the ethylene glycol yield was 76%. |
| Databáze: | OpenAIRE |
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