What are the Applications of Metal Metal Oxide Composites in Catalysis?
Metal-metal oxide composites find applications in a wide range of catalytic processes. Some of the major applications include:
1. Hydrogenation Reactions: These composites are used in the hydrogenation of organic compounds, where metals like palladium or platinum are often combined with metal oxides like alumina or titania to enhance activity and selectivity. 2. Oxidation Reactions: Composites such as cobalt oxide on alumina are used for the oxidation of volatile organic compounds (VOCs) and CO oxidation, providing high catalytic efficiency and stability. 3. Photocatalysis: Titanium dioxide combined with noble metals like gold or silver is widely used in photocatalytic applications for water splitting and degradation of pollutants. 4. Electrocatalysis: Composites of metals like platinum with metal oxides such as ruthenium oxide are employed in fuel cells and electrolyzers to improve the efficiency of oxygen reduction and hydrogen evolution reactions.
