Cobalt oxide Nanoparticles/Nanopowder (Co3O4, 30-50nm, purity 99.5%)
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Cobalt Oxide Nanoparticles / Nanopowder (Co₃O₄, 30–50 nm, Purity 99.5%)
⚙️ Technical Specifications
Property | Specification |
|---|---|
Product Name | Cobalt Oxide Nanoparticles / Nanopowder |
Chemical Formula | Co₃O₄ |
Purity | ≥ 99.5% |
Particle Size | 30–50 nm |
Appearance | Black fine powder |
Crystal Structure | Cubic (Spinel) |
Density | 6.11 g/cm³ |
Specific Surface Area (SSA) | 35–70 m²/g |
Melting Point | ~895°C |
Solubility | Insoluble in water, soluble in acids |
Morphology | Nearly spherical / polycrystalline |
CAS Number | 1308-06-1 |
🌟 Key Features
High purity (≥99.5%) and narrow nano-size range (30–50 nm)
High surface area enhances catalytic and electrochemical performance
Exhibits strong oxidation–reduction activity
Excellent electrical conductivity and magnetic response
Chemically and thermally stable under operating conditions
Environmentally safe and easy to handle
Suitable for coating, sensor, and battery material applications
🔬 Applications (in Detail)
1. Catalysis
Cobalt oxide nanoparticles are widely used as oxidation and reduction catalysts due to their mixed Co²⁺/Co³⁺ oxidation states and high surface reactivity.
Applied in automotive catalytic converters, CO oxidation, and hydrocarbon decomposition.
Used as a heterogeneous catalyst for environmental and chemical synthesis processes.
2. Energy Storage and Conversion
Co₃O₄ nanostructures play a key role in electrochemical energy storage systems.
Used as an anode material in lithium-ion batteries, offering high capacity and stability.
Applied in supercapacitors for rapid charge–discharge cycles.
Acts as a catalyst for oxygen evolution (OER) and reduction reactions (ORR) in fuel cells and water-splitting systems.
3. Gas Sensors
Due to its semiconducting nature, Co₃O₄ nanoparticles are sensitive to gases like CO, H₂, ethanol, and ammonia.
Used in gas sensing devices where electrical resistance changes with gas exposure.
Ideal for industrial gas monitoring and air pollution detection systems.
4. Magnetic and Electronic Devices
Cobalt oxide nanoparticles exhibit antiferromagnetic and semiconducting behavior, useful for advanced electronics.
Used in magnetic storage, spintronic materials, and electrochromic displays.
Enhances electrical conductivity and thermal stability in functional coatings.
5. Ceramics, Glass, and Pigments
Cobalt oxide imparts deep blue or black coloration in ceramics and glass.
Used as a colorant, opacifier, and stabilizer in ceramic glazes and enamels.
Improves mechanical strength and thermal resistance in composite materials.
6. Photocatalysis & Environmental Protection
Co₃O₄ nanoparticles are effective photocatalysts under visible light, helping degrade pollutants.
Applied in wastewater treatment, dye degradation, and CO₂ conversion.
Plays a role in green chemistry and environmental remediation processes.