1. Activated Carbon: Known for its high surface area and porosity, activated carbon is widely used in heterogeneous catalysis. 2. Carbon Nanotubes (CNTs): CNTs offer excellent mechanical strength, electrical conductivity, and unique electronic properties. 3. Graphene: This single layer of carbon atoms provides a large surface area, high thermal conductivity, and mechanical strength. 4. Carbon Nanofibers (CNFs): CNFs have high surface areas and are used for their mechanical and electrical properties.
