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Preparation and characterisation of supported La0.8Sr0.2MnO3+x |
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| Authors: | R. Burch P. J. F. Harris C. Pipe |
| Affiliation: | a The School of Chemistry, David Keir Building, Stranmillis Road, The Queen’s University of Belfast, Belfast BT9 5AG, Northern Ireland, UK b Department of Chemistry, Catalysis Research Centre, University of Reading, Whiteknights, Reading RG6 6AD, UK |
| Abstract: | Three supported La0.8Sr0.2MnO3+x catalysts were prepared, one supported on lanthanum-stabilised alumina and two supported on a NiAl2O4 spinel. The catalysts were characterised using X-ray diffraction, transmission electron microscopy and surface area measurements following heat-treatments at temperatures up to 1200°C in air. In the alumina-supported catalyst, a reaction occurred between the active phase and the support at high temperatures, indicating that these materials would be unsuitable for high temperature catalytic combustion. Only in the NiAl2O4-supported catalysts were the supported perovskite phases found to be stable at high temperature. These catalysts showed good methane combustion activity. |
| Keywords: | Lanthanum-stabilised alumina Spinel Perovskite phases |
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