- Iron-based Catalysts: Iron is one of the most abundant elements on earth and is extensively used in various catalytic reactions, including the Haber-Bosch process for ammonia synthesis. - Copper-based Catalysts: Copper plays a significant role in reactions such as the Wacker process and is also used in various hydrogenation reactions. - Nickel-based Catalysts: Nickel is a versatile catalyst used in hydrogenation, reforming, and methanation processes. - Carbon-based Catalysts: Activated carbon and carbon nanotubes are notable for their use in adsorption and catalytic applications.
