What Materials Are Commonly Used for Surface Coatings?
A variety of materials can be used for surface coatings, each offering unique benefits:
1. Metals: Platinum, palladium, and gold are often used due to their excellent catalytic properties and resistance to deactivation. 2. Metal Oxides: Titanium dioxide, alumina, and silica are commonly used to enhance thermal stability and resistance to poisoning. 3. Polymers: Polytetrafluoroethylene (PTFE) and other polymers can provide protective barriers against corrosive environments. 4. Composites: Combining different materials can result in coatings that offer multiple benefits, such as improved durability and enhanced catalytic activity.
