Lanthanum Oxide Nanoparticles
Lanthanum oxide (La2O3), also known as lanthana, is an odorless white solid material that is insoluble in water. Lanthanum oxide nanoparticles are utilized in different industries due to their interesting chemical nature and exceptional catalytic, magnetic and electronic properties. La2O3 has a hexagonal crystal structure, a high melting point at 2315°C, p-type semiconducting properties and a bandgap of approximately 5.8 eV. Its average room temperature resistivity is 10 kΩ·cm and a high dielectric constant of 27. The wide variety of applications of La2O3 nanoparticles include; cathode layer of solid oxide fuel cells (SOFC), magnetic data storage and magnetic resonance imaging (MRI), biosensors, phosphate removal in biomedical and water treatment, high-performance luminescent devices, upconversion materials, hydrogen storage materials, high κ gate dielectric materials, lasers, piezoelectric materials, and optical glasses. Lanthanum oxide nanoparticles are also used as catalysts in organic reactions and exhaust gas cleaning processes.