Terbium(III,IV) Oxide
Terbium(III,IV) Oxide Properties
| CAS No. | 12037-01-3 | |
| Chemical formula | Tb4O7 | |
| Molar mass | 747.6972 g/mol | |
| Appearance | Dark brown-black hygroscopic solid. | |
| Density | 7.3 g/cm3 | |
| Melting point | Decomposes to Tb2O3 | |
| Solubility in water | Insoluble | |
High Purity Terbium Oxide Specification
| Particle Size(D50) | 2.47 μm |
| Purity(（Tb4O7） | 99.995% |
| TREO(Total Rare Earth Oxides) | 99% |
| RE Impurities Contents | ppm | Non-REEs Impurities | ppm |
| La2O3 | 3 | Fe2O3 | <2 |
| CeO2 | 4 | SiO2 | <30 |
| Pr6O11 | <1 | CaO | <10 |
| Nd2O3 | <1 | CL¯ | <30 |
| Sm2O3 | 3 | L.O.I | ≦1% |
| Eu2O3 | <1 | ||
| Gd2O3 | 7 | ||
| Dy2O3 | 8 | ||
| Ho2O3 | 10 | ||
| Er2O3 | 5 | ||
| Tm2O3 | <1 | ||
| Yb2O3 | 2 | ||
| Lu2O3 | <1 | ||
| Y2O3 | <1 |
| 【Packaging】25KG/bag Requirements:moisture proof, dust-free, dry, ventilate and clean. |
What is Terbium(III,IV) Oxide used for?
Terbium(III,IV) Oxide (Tb₄O₇) is a critical rare-earth compound with unique optical, catalytic, and magnetic properties, enabling its use across advanced technologies. Key applications include:
1. Advanced Materials Synthesis
- Precursor Material: Serves as a primary precursor for synthesizing high-purity terbium compounds, including terbium salts, alloys, and nanomaterials.
- Composite Catalysts: Combined with cerium oxide (CeO₂) in catalytic converters for automobiles, effectively reducing harmful emissions (e.g., NOₓ, CO) in exhaust systems.
- Nanoparticles: Engineered Tb₄O₇ nanoparticles are utilized as fluorescent probes or sensors in analytical chemistry, particularly for detecting trace drugs or contaminants in food and environmental samples.
2. Optoelectronics & Photonics
- Phosphor Activator: Acts as a green phosphor activator in lighting and display technologies, such as LEDs, fluorescent lamps, and cathode-ray tubes, ensuring bright and stable color emission.
- Magneto-Optical Devices: Integrated into magneto-optical recording media (e.g., data storage disks) and specialized glasses for optical isolators, modulators, and laser systems, leveraging its Faraday effect to control light polarization.
- Solid-State Devices: Functions as a dopant in semiconductors and solid-state electrolytes to enhance conductivity and stability in electronic components and fuel cells.
- Laser Technology: Employed in high-performance solid-state lasers for medical, industrial, and research applications due to its efficient light amplification properties.
3. Energy & Environmental Technologies
- Fuel Cells: Enhances oxygen ion conductivity and durability in solid oxide fuel cell (SOFC) electrodes and electrolytes, improving energy conversion efficiency.
- Redox Catalysis: Serves as a catalyst in oxygen-dependent industrial processes, such as methane oxidation and water splitting, due to its high redox activity and thermal stability.
4. Analytical Chemistry
- Sensing & Detection: Tb₄O₇ nanoparticles enable sensitive fluorometric or colorimetric detection of pharmaceuticals, pesticides, and biological molecules in food safety and environmental monitoring.
Key Advantages:
- Multifunctional Properties: Combines luminescence, magnetism, and catalytic activity for cross-industry versatility.
- High Thermal Stability: Maintains performance in extreme conditions, ideal for catalysis and energy applications.
- Tunable Nanostructures: Nanoparticles can be tailored for targeted sensing, imaging, or catalytic functions.
Tb₄O₇ is indispensable in cutting-edge fields such as clean energy, optoelectronics, and nanotechnology, driving innovations in sustainability and advanced manufacturing.
This structure emphasizes clarity, technical precision, and alignment with modern industrial and research trends.
