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EnglishParticle morphology and surface properties of metal oxides are topics of great importance in the field of heterogeneous catalysis. Herein, we have developed a molecular-colloidal coassembly approach combined with an ultrasonic-assisted precipitation method to fabricate SnO@γ-Al2O3 composites with tuneable pore size and well-defined octahedral-shape crystal structure. The supramolecular assemblies formed between the randomly methylated β-cyclodextrin (RaMeβCD) and Pluronic F127 were employed as template to tailor the size and shape of γ-Al2O3 nanoparticles and direct their assembly almost exclusively on the surface of micrometer-sized SnO single crystals. Results revealed that the cooperative action of the supramolecular template and γ-Al2O3 nanoparticles may have a critical effect on the growth and orientation of SnO microcrystals and ultimately determine their catalytic performance in the interesterification of rapeseed oil with methyl acetate. The compartmentalized SnO@γ-Al2O3 structures could achieve fatty acid methyl esters (FAME) and triacetin (TA) yields of 33.5% and 1.5% respectively after 30 min at 210 °C, exceeding by 38% the FAME yield of the commercial catalyst.
Prestigiacomo C., Biondo M., Galia A., Monflier E., Ponchel A., Prevost D., et al. (2022). Interesterification of triglycerides with methyl acetate for biodiesel production using a cyclodextrin-derived SnO@γ-Al2O3 composite as heterogeneous catalyst [10.1016/j.fuel.2022.124026].
| Data di pubblicazione: | 2022-08 | |
| Titolo: | Interesterification of triglycerides with methyl acetate for biodiesel production using a cyclodextrin-derived SnO@γ-Al2O3 composite as heterogeneous catalyst | |
| Autori: | ||
| Citazione: | Prestigiacomo C., Biondo M., Galia A., Monflier E., Ponchel A., Prevost D., et al. (2022). Interesterification of triglycerides with methyl acetate for biodiesel production using a cyclodextrin-derived SnO@γ-Al2O3 composite as heterogeneous catalyst [10.1016/j.fuel.2022.124026]. | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.fuel.2022.124026 | |
| Abstract: | Particle morphology and surface properties of metal oxides are topics of great importance in the field of heterogeneous catalysis. Herein, we have developed a molecular-colloidal coassembly approach combined with an ultrasonic-assisted precipitation method to fabricate SnO@γ-Al2O3 composites with tuneable pore size and well-defined octahedral-shape crystal structure. The supramolecular assemblies formed between the randomly methylated β-cyclodextrin (RaMeβCD) and Pluronic F127 were employed as template to tailor the size and shape of γ-Al2O3 nanoparticles and direct their assembly almost exclusively on the surface of micrometer-sized SnO single crystals. Results revealed that the cooperative action of the supramolecular template and γ-Al2O3 nanoparticles may have a critical effect on the growth and orientation of SnO microcrystals and ultimately determine their catalytic performance in the interesterification of rapeseed oil with methyl acetate. The compartmentalized SnO@γ-Al2O3 structures could achieve fatty acid methyl esters (FAME) and triacetin (TA) yields of 33.5% and 1.5% respectively after 30 min at 210 °C, exceeding by 38% the FAME yield of the commercial catalyst. | |
| Settore Scientifico Disciplinare: | Settore ING-IND/27 - Chimica Industriale E Tecnologica | |
| Appare nelle tipologie: | 1.09 Review essay (rassegna critica) |
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