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Description
Lanthanum Oxide (La₂O₃) Nanopowder / Nanoparticles (99.99%, 10–100 nm, White)
Lanthanum Oxide (La₂O₃) Nanopowder is a high-purity, white, nearly spherical rare earth oxide material synthesized via wet chemical methods. With particle sizes ranging from 10 to 100 nm (with a small fraction reaching up to 200 nm), this nanomaterial offers exceptional chemical stability, high surface area (25–35 m²/g), and excellent thermal resistance. It exhibits a true density of 6.51 g/cm³ and has extremely low bulk density (<0.2 g/cm³), making it suitable for a wide range of high-tech and catalytic applications.
Lanthanum Oxide nanoparticles are only slightly soluble in water but are highly reactive in acidic environments, forming corresponding lanthanum salts. When exposed to air, the powder tends to absorb carbon dioxide and moisture, gradually converting into lanthanum carbonate. Upon combustion in air, La₂O₃ releases a significant amount of heat and reacts vigorously with water.
The product maintains a purity level of 99.99% (REO), with minimal impurity levels:
| Impurity | Content (%) |
|---|---|
| Fe₂O₃ | <0.01 |
| CaO | <0.002 |
| SiO₂ | <0.001 |
| Cl | <0.002 |
| Others | <0.05 |
Applications
1. Piezoelectric Materials
Lanthanum oxide nanoparticles are used as dopants in piezoelectric ceramics to enhance dielectric constant, piezoelectric coefficients, and improve overall energy conversion efficiency.
2. Optical & Glass Materials
Due to its high refractive index, La₂O₃ is utilized in manufacturing precision optical glass, high-refraction lenses, optical fibers, and infrared-absorbing glasses.
3. Catalysis
Acts as a catalyst or co-catalyst in automotive three-way catalytic converters (TWC).
Used in petrochemical refining and in the production of organic synthesis intermediates.
Enhances the burning rate of solid propellants, making it promising for aerospace fuels.
4. Electronic & Photonic Devices
Applied in high-k dielectric materials in microelectronics.
Ideal for use in light-converting agricultural films due to high photoelectric conversion efficiency.
Functions in light-emitting devices and blue phosphor production.
5. Energy & Advanced Materials
Used in hydrogen storage systems due to its absorption capabilities.
Valuable in laser materials and electrode formulations.
Potential role in next-generation energy storage technologies and fuel cells.
Key Features
Purity: 99.99% (REO basis)
Size: 10–100 nm (1–2 wt% may reach 200 nm)
Surface Area: 25–35 m²/g
Density: Bulk <0.2 g/cm³ | True 6.51 g/cm³
Melting Point: 2217 °C | Boiling Point: 4200 °C
Color: White
Synthesis: Wet chemical precipitation
Storage Caution: Avoid exposure to air and humidity — hygroscopic and CO₂-reactive.
Additional information
| Gram | 25 g, 100 g, 500 g, 1000 g |
|---|