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Research Interests: Surface Chemistry and Catalysis. Use of vibrational spectroscopy. Our research involves the use of multiple characterisation tools to determine the nature of solid surfaces and the processes which occur on these surfaces in the presence of gaseous and liquid- phase reactant molecules. Characteristics of these solids are determined by using a combination of bulk and surface specific techniques including XRD, solid state NMR, surface-area measurement, chemisorption, chemical reaction, X-ray absorption and infrared spectroscopy. As catalysts' surfaces are dynamic, characterisation is often performed in-situ (with the sample at elevated temperatures/pressures in a flow of the reacting gases). This also allows us to identify species present during reaction, and define their role in the formation of products and thus elucidate reaction pathways. Reactions of interest include: NOx reduction and pollutant gas control, activation of small hydrocarbons, selective hydrogenation, and asymmetric synthesis. Solids of interest are (a) mixed oxides, (b) supported metals and bimetallics and (c) supported chiral reagents. Amorphous mixed oxides are prepared by sol-gel chemistry and studied to determine the relationship between component mixing and the generation of Brønsted-acid sites. The objective is to be able to prepare on a custon basis oxides by controlled mixing and distribution of the components to generate solid acid catalysts which have specific acid strength and thus exhibit high selectivity towards the desired product.