ZrO2Ceria

ZrO2Ceria refers to a composite material made from zirconium dioxide (ZrO2) and cerium dioxide (CeO2). These two oxides are often combined to leverage their individual properties and create synergistic effects. Zirconium dioxide is known for its high strength, fracture toughness, and chemical inertness. Cerium dioxide, on the other hand, is recognized for its redox properties, oxygen storage capacity, and catalytic activity.

The combination of ZrO2 and CeO2 can be achieved through various synthesis methods, including co-precipitation, sol-gel techniques, and solid-state reactions. The resulting composite can have a solid solution structure or a multiphase structure depending on the processing conditions and the relative amounts of each oxide. Doping ceria with zirconia, or vice versa, can significantly alter their properties. For instance, introducing zirconia into ceria can stabilize the cubic fluorite phase of ceria, enhancing its thermal stability and oxygen storage capacity.

Applications for ZrO2Ceria composites are found in several fields. They are widely investigated for their use as catalysts and catalytic supports in automotive exhaust systems, where their ability to store and release oxygen aids in the efficient conversion of harmful pollutants. In solid oxide fuel cells (SOFCs), these materials can serve as electrolytes or electrode components, benefiting from their ionic conductivity and thermal resistance. Additionally, their mechanical robustness and biocompatibility make them candidates for biomedical applications, such as dental implants and ceramic coatings. The precise composition and microstructure of ZrO2Ceria can be tailored to optimize performance for specific applications.