Abstract
Layered double hydroxides (LDH) containing Zn/Al and Mg/Al with different counter-ions and M2+/M3+ ratios were synthesized and used as catalysts in the esterification of fatty acids with methanol. High conversion rates were obtained depending on the reaction conditions. However, LDHs were also converted in situ into layered carboxylates and this new material was responsible for the observed catalytic activity, which was preserved even after several consecutive reuse cycles.
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Acknowledgments
The authors are grateful to the following Brazilian funding agencies for financial support: CNPq (Grants 550348/2009-3 and 312362/2006-4), FINEP (Grant 01.07.0480-00), and CAPES, for providing scholarships to our graduate students.
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Cordeiro, C.S., da Silva, F.R., Marangoni, R. et al. LDHs Instability in Esterification Reactions and Their Conversion to Catalytically Active Layered Carboxylates. Catal Lett 142, 763–770 (2012). https://doi.org/10.1007/s10562-012-0819-z
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DOI: https://doi.org/10.1007/s10562-012-0819-z