There are several classes of materials commonly employed in catalysis:
1. Metals: Transition metals like platinum, palladium, and nickel are widely used due to their high catalytic activity. 2. Metal Oxides: Materials such as alumina, titania, and ceria provide stability and can act as supports or active catalysts. 3. Zeolites: Microporous aluminosilicates that offer high surface area and tunable acidity. 4. Carbon-Based Materials: Activated carbon, graphene, and carbon nanotubes are valued for their conductivity and surface properties. 5. Perovskites: These complex oxides offer a range of adjustable properties through compositional tuning.
