Ceria Oxide Nanoparticles (CeO₂ NPs)

Product Overview

Ceria oxide nanoparticles (CeO₂ NPs) are nanometer-scale oxide materials composed of cerium (Ce) and oxygen (O). These nanoparticles have a cubic fluorite structure and are widely used in fields such as catalysis, energy conversion, and antioxidant applications. Cerium oxide possesses unique redox properties and oxygen storage capability, enabling it to undergo reversible oxidation-reduction reactions in high-temperature or reducing environments, generating oxygen vacancy defects and imparting significant catalytic activity.

Key Features

• Size Effect: The nanometer-sized particles provide cerium oxide nanoparticles with a high specific surface area, increasing the number of surface active sites and thereby enhancing reaction activity.
• Redox Properties: Cerium oxide exhibits high redox activity and can undergo reversible oxidation state changes, making it particularly advantageous in catalyst and oxidant applications.
• Stability: Cerium oxide nanoparticles demonstrate good stability under various environmental conditions, maintaining performance over extended periods in catalytic reactions.
• Biocompatibility: In biomedical fields, cerium oxide nanoparticles exhibit good biocompatibility, making them suitable for drug delivery and bioimaging applications.

Applications

• Catalysts: Cerium oxide nanoparticles significantly enhance catalytic efficiency in fields such as automotive exhaust treatment, chemical reaction catalysis, and energy conversion, particularly excelling in catalytic oxidation-reduction reactions.
• Antioxidants: In biomedical and materials modification applications, cerium oxide nanoparticles act as antioxidants, effectively counteracting free radical damage and protecting cells and tissues.
• Gas Sensors: Due to their unique sensing properties, cerium oxide nanoparticles are widely used in detecting harmful gases such as carbon monoxide and hydrogen, improving environmental monitoring and safety protection.
• Fuel Cells: As electrolyte materials for solid oxide fuel cells, cerium oxide nanoparticles' excellent oxygen ion conductivity significantly enhances fuel cell performance and efficiency.
• Electronic Ceramics: In electronic ceramics manufacturing, cerium oxide nanoparticles improve the smoothness and density of ceramics, enhancing their physical properties.