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Description
Terbium Oxide (Tb₄O₇) Nanopowder / Nanoparticles – High Purity (99.97%), Cubic, 8–110 nm
Terbium Oxide (Tb₄O₇) Nanopowder is a high-purity (99.97%) nanomaterial with cubic crystal structure and particle sizes ranging from 8–110 nm. It appears as a dark brown to black powder with spherical morphology and exhibits unique magnetic and optical properties. Tb₄O₇ is one of the most important terbium compounds and the only commercial oxide that contains terbium in both +3 and +4 oxidation states.
With high stability and reactivity, terbium oxide nanoparticles are widely utilized in magneto-optical applications, catalytic systems, and luminescent materials.
Technical Properties:
| Property | Unit | Typical Value |
|---|---|---|
| Purity | % | 99.97 |
| Color | – | Dark brown-black |
| Morphology | – | Spherical |
| Average Particle Size | nm | 8–110 |
| Specific Surface Area | m²/g | 15 |
| Bulk Density | g/cm³ | 0.8 |
| True Density | g/cm³ | 7.1 |
Elemental Analysis (Impurities):
| Element | % |
|---|---|
| NiO | 0.001 |
| Fe₂O₃ | 0.001 |
| CaO | 0.0045 |
| SiO₂ | 0.0005 |
| Cl | 0.024 |
Rare Earth Impurities (ppm):
| Oxide | Content |
|---|---|
| Tb₄O₇ | >99.99% |
| Er₂O₃ | <10 ppm |
| Eu₂O₃ | <10 ppm |
| Gd₂O₃ | <20 ppm |
| Ho₂O₃ | <20 ppm |
| Sm₂O₃ | <10 ppm |
| Y₂O₃ | <10 ppm |
| CaO | <45 ppm |
| CuO | <10 ppm |
| Fe₂O₃ | <9 ppm |
| NiO | <10 ppm |
| PbO | <10 ppm |
| SiO₂ | <5 ppm |
| Cl | <243 ppm |
Dual Valence States (+3 and +4): Unique among terbium oxides, providing special catalytic and optical behavior.
High Purity (99.97%) ensures excellent performance in advanced applications.
Magneto-Optical Properties: Enables use in optical isolators, recording media, and laser systems.
Catalytic Activity: Suitable for automotive exhaust converters and composite catalysts.
Strong Faraday Rotation: Valuable in optical and laser-based devices.
Applications:
Magneto-Optical Glasses & Recording Materials: Used in data storage, isolators, and advanced optical devices.
Faraday Rotation Materials: Incorporated in glass for optical and laser systems requiring magnetic field control.
Catalysts: Key material in automobile exhaust converters (CeO₂–Tb₄O₇ composites) and oxidation reactions.
Fluorescent Powder Activation: Acts as an activating agent in phosphors for lighting and display technologies.
Advanced Electronics: Used in thin-film coatings, semiconductors, and high-tech ceramics.
Precursor for Other Terbium Compounds: Starting material for Tb₂O₃, TbO₂, Tb₆O₁₁, and other terbium-based oxides.
Additional information
| Gram | 25 g, 100 g |
|---|