Abstract
Described are new solid base catalysts for transesterification of seed oil triglycerides to fatty acid methyl esters, a key step in biodiesel production. These were prepared by substituting Fe3+ ions substitute for a fraction of the Al3+ ions in the Mg/Al layered double hydroxide lattices of hydrotalcites (HTC) and calcining to give porous metal oxides (PMOs). These iron-doped PMOs are much stronger bases than those derived from undoped or Ga3+ doped HTCs and are effective catalysts for the methanol transesterification of triacetin (glycerol triacetate) and of soybean oil.
Graphical Abstract
New solid base catalysts for transesterification of seed oil triglycerides to fatty acid methyl esters, a key step in biodiesel production, were prepared by substituting Fe3+ for Al3+ cations in hydrotalcite (HTC) structures and calcining to give porous metal oxides.
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Acknowledgments
Principal support was the UCSB Partnership for International Research and Education in Electron Chemistry and Catalysis at Interfaces (PIRE-ECCI) under National Science Foundation Grant number OISE-0530268. PCF also acknowledges partial support from the University of California Energy Institute and the University of Washington Center for the Activation of Strong Bonds (NSF CBC).
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Macala, G.S., Robertson, A.W., Johnson, C.L. et al. Transesterification Catalysts from Iron Doped Hydrotalcite-like Precursors: Solid Bases for Biodiesel Production. Catal Lett 122, 205–209 (2008). https://doi.org/10.1007/s10562-008-9480-y
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DOI: https://doi.org/10.1007/s10562-008-9480-y