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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Kondrat, S. A. Bartley, J. K. Dickinson, C. Crudace, M. J. Rosseinsky, M. J. Carley, A. F. Xu, Z. Tang, Z.-R. Davies, T. E. Claridge, J. B. Hutchings, G. J. Allix, M. Romani, S. Taylor, S. H. |
| Copyright Year | 2011 |
| Abstract | A series of high surface area nanocrystalline copper manganese oxide catalysts have been prepared by supercritical anti-solvent (SAS) precipitation using CO2 and tested for the ambient temperature oxidation of CO. The catalysts were prepared by precipitation from an ethanol/metal acetate solution and the addition of small quantities of water was found to result in a mixed acetate precursor with surface areas >200 m2 g−1, considerably higher than those prepared by conventional precipitation methods. The surface area of the final calcined mixed oxide was found to be dependent upon the initial water concentration. XRD and FT-IR analysis indicated that the addition of water promoted the formation of carbonate species in the amorphous acetate precursor, with high resolution TEM and STEM showing the material to consist of spherical agglomerations of fibrous strings of ca. 30 nm length. This is in contrast to the material prepared in the absence of water, using the same SAS methodology, which typically yields quasi-spherical particles of 100 nm size. |
| Starting Page | 740 |
| Ending Page | 746 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 20444753 |
| Volume Number | 1 |
| Issue Number | 5 |
| Journal | Catalysis Science & Technology |
| DOI | 10.1039/c1cy00064k |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | X-ray crystallography String theory Transmission electron microscopy SAS Ethanol Serial Attached SCSI Supercritical fluid Calcination Fourier-transform infrared spectroscopy Copper Scanning transmission electron microscopy Manganese oxide |
| Content Type | Text |
| Resource Type | Article |
| Subject | Catalysis |
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