Alkali- and nitrate-free synthesis of highly active Mg-Al hydrotalcite-coated alumina for FAME production

Abstract

Mg-Al hydrotalcite coatings have been grown on alumina via a novel alkali- and nitrate-free impregnation route and subsequent calcination and hydrothermal treatment. The resulting Mg-HT/AlO catalysts significantly outperform conventional bulk hydrotalcites prepared via co-precipitation in the transesterification of C-C triglycerides for fatty acid methyl ester (FAME) production, with rate enhancements increasing with alkyl chain length. This promotion is attributed to improved accessibility of bulky triglycerides to active surface base sites over the higher area alumina support compared to conventional hydrotalcites wherein many active sites are confined within the micropores.

Publication DOI: https://doi.org/10.1039/c3cy00902e
Divisions: College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI)
College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Chemical Engineering & Applied Chemistry
Additional Information: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Funding: EPSRC (EP/G007594/3, a Leadership Fellowship and studentship); and the Royal Society for the award of an Industry Fellowship. Electronic supplementary information: DOI 10.1039/c3cy00902e
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://pubs.rsc ... 2e#!divAbstract (Publisher URL)
PURE Output Type: Article
Published Date: 2014-03-01
Published Online Date: 2014-01-22
Authors: Creasey, Julia J.
Chieregato, Alessandro
Manayil, Jinesh C. (ORCID Profile 0000-0002-9864-3332)
Parlett, Christopher M.A. (ORCID Profile 0000-0002-3651-7314)
Wilson, Karen (ORCID Profile 0000-0003-4873-708X)
Lee, Adam F. (ORCID Profile 0000-0002-2153-1391)

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