Structure-sensitive biodiesel synthesis over MgO nanocrystals

Janine M. Montero; Pratibha Gai; Karen Wilson; Adam F. Lee

doi:10.1039/b814357a

Structure-sensitive biodiesel synthesis over MgO nanocrystals

Janine M. Montero, Pratibha Gai, Karen Wilson, Adam F. Lee

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	265-268
Number of pages	4
Journal	Green Chemistry
Volume	11
Issue number	2
Early online date	5 Dec 2008
DOIs	https://doi.org/10.1039/b814357a
Publication status	Published - 2009

Bibliographical note

Financial support by the EPSRC under grant EP/D038359/1 and BP Biofuels is gratefully acknowledged.

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title = "Structure-sensitive biodiesel synthesis over MgO nanocrystals",

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.",

author = "Montero, {Janine M.} and Pratibha Gai and Karen Wilson and Lee, {Adam F.}",

note = "Financial support by the EPSRC under grant EP/D038359/1 and BP Biofuels is gratefully acknowledged.",

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AU - Montero, Janine M.

AU - Gai, Pratibha

AU - Wilson, Karen

AU - Lee, Adam F.

N1 - Financial support by the EPSRC under grant EP/D038359/1 and BP Biofuels is gratefully acknowledged.

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

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JO - Green Chemistry

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Structure-sensitive biodiesel synthesis over MgO nanocrystals

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