Journal
CATALYSIS COMMUNICATIONS
Volume 34, Issue -, Pages 58-63Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2013.01.010
Keywords
One-step synthesis; Mesoporous materials; H4SiW12O40-SiO2; Catalysis; Biodiesel
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Funding
- Discovery Grant from the Natural Sciences and Engineering Research Council of Canada (NSERC)
- Centre for Research and Innovation in the Bio-Economy (CRIBE)
- Ontario Postdoctoral Fellowship
- Canadian Foundation of Innovation (CFI) for the Canada Research Chair Award in Material and Environmental Chemistry
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A novel one-step method for the synthesis of mesoporous H4SiW12O40-SiO2 catalysts with tunable composition was successfully developed using non-ionic polyethylene glycol dodecyl ether (Brij 30) as the structure-directing template. Different loadings of H4SiW12O40 (up to 30 wt.%) were effectively confined within the mesoporous channels of SiO2, which would facilitate easy recycling and allow for the efficient mass transport of reactants and products. The resultant mesoporous H4SiW12O40-SiO2 showed high catalytic activity for the production of methyl and ethyl levulinate biodiesel. The 20 wt.% H4SiW12O40-SiO2 catalyst exhibited the best performance in the synthesis of both methyl levulinate (73% yield achieved at 79% conversion of levulinic acid) and ethyl levulinate (67% yield obtained at 75% conversion of levulinic add). (C) 2013 Elsevier B.V. All rights reserved.
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