Lanthanum cerate is an important rare earth complex oxide, combining the properties of lanthanum and cerium, and its unique physical and chemical properties have shown potential application values in many fields.
Chemical properties
- Solubility: Insoluble in water, may have some solubility in acidic and alkaline solutions, but usually requires higher temperatures or specific acidic or alkaline conditions.
- Thermal stability: It has a high thermal stability, maintaining good chemical stability and crystal structure integrity until it begins to decompose at higher temperatures.
- Redox properties: Cerium element has certain redox variability. Under specific conditions, lanthanum cerate may participate in redox reactions, exhibiting corresponding oxidizing or reducing properties.
- Acid-base properties: The overall solution is weakly basic, due to the possible hydrolysis of Ce(IV) and La(III) ions in aqueous solution, which produces hydroxide ions.
Application fields
Materials science
- Ceramic materials: can be used to prepare high-performance ceramic materials, improving the hardness, strength, high-temperature resistance and chemical stability of ceramics.
- Solid electrolytes: Lanthanum cerium oxide could be a potential candidate material in the research of solid electrolyte materials, contributing to enhancing the ionic conductivity of the electrolyte.
Catalysis field
- Catalyst: Can act as a catalyst or catalyst carrier, participating in various chemical reactions such as oxidation reactions, reduction reactions, etc., to improve the reaction rate and selectivity.
Optical field
- Luminous materials: By taking advantage of their unique electronic structure and optical properties, they can be used to prepare luminous materials, which have application potential in the fields of lighting and display.
Environmental field:
- Waste gas treatment: It can be used to treat and purify certain pollutants in waste gases by its oxidizing or adsorbing properties.
