New nanocrystalline Cu/MnOx catalysts prepared from supercritical antisolvent precipitation

Tang, Zi-Rong, Jones, Christopher David, Aldridge, James K. W., Davies, Thomas Edward, Bartley, Jonathan Keith, Carley, Albert Frederick, Taylor, Stuart Hamilton, Allix, Mathieu, Dickinson, Calum, Rosseinsky, Matthew J., Claridge, John B., Xu, Zhongling, Crudace, Mandy J. and Hutchings, Graham John 2009. New nanocrystalline Cu/MnOx catalysts prepared from supercritical antisolvent precipitation. ChemCatChem 1 (2) , pp. 247-251. 10.1002/cctc.200900195

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Abstract

Supercritical CO2 is used as an antisolvent to precipitate out nanostructured homogeneous mixtures of Cu2+ and Mn3+ with crystallites of 10–20 nm in diameter. Following calcination, this material forms a crystalline tetragonal spinel, CuMn2O4, with a branched chainlike structure with a length of 160–200nm and diameters of approximately 40nm. This new material is more than twice as active per unit surface area as the conventionally prepared hopcalite catalysts for the oxidation of carbon monoxide. This is the first time that homogeneous mixed oxides have been formed using this method.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	copper · oxidation · catalyst preparation · manganese · supercitical fluids
Publisher:	Wiley
ISSN:	1867-3880
Last Modified:	04 Jun 2017 01:58
URI:	http://orca-mwe.cf.ac.uk/id/eprint/6854

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