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Issue 2, 2009
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Structure-sensitive biodiesel synthesis over MgO nanocrystals

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Abstract

Size-controlled MgO nanocrystals were synthesised via a simple sol-gel method and their bulk and surface properties characterised by powder XRD, HRTEM and XPS. Small, cubic MgO single crystals, generated by low temperature processing, expose weakly basic (100) surfaces. High temperature annealing transforms these into large, stepped cuboidal nanoparticles of periclase MgO which terminate in more basic (110) and (111) surfaces. The size dependent evolution of surface electronic structure correlates directly with the associated catalytic activity of these MgO nanocrystals towards glyceryl tributyrate transesterification, revealing a pronounced structural preference for (110) and (111) facets.

Graphical abstract: Structure-sensitive biodiesel synthesis over MgO nanocrystals

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Publication details

The article was received on 18 Aug 2008, accepted on 14 Oct 2008 and first published on 05 Dec 2008


Article type: Paper
DOI: 10.1039/B814357A
Green Chem., 2009,11, 265-268

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    Structure-sensitive biodiesel synthesis over MgO nanocrystals

    J. M. Montero, P. Gai, K. Wilson and A. F. Lee, Green Chem., 2009, 11, 265
    DOI: 10.1039/B814357A

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