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Description
Cobalt Oxide (Co₃O₄) Nanopowder / Nanoparticles – 99.9%, 40–50 nm
Cobalt Oxide (Co₃O₄) Nanopowder is a high-purity, black, nearly spherical nanoparticle material with a particle size range of 40–50 nm. Known for its mixed valence structure containing both Co(II) and Co(III) oxidation states, this material exhibits exceptional catalytic, electrochemical, and magnetic properties, making it valuable in diverse industrial and research applications.
Technical Properties
| Property | Value |
|---|---|
| Purity (%) | 99.9 |
| Color | Black |
| Average Particle Size (nm) | 40–50 |
| Morphology | Nearly spherical |
| Specific Surface Area (m²/g) | 35–75 |
| Bulk Density (g/cm³) | 0.95 |
| pH | 6.0 |
| Loss of Weight in Drying (%) | 0.27 |
Elemental Analysis (%)
| Element | Content |
|---|---|
| Co | >78 |
| Ni | 0.1 |
| Fe | 0.05 |
| Cu | 0.05 |
| Pb | 0.005 |
Chemical Properties
Cobalt(II,III) oxide (Co₃O₄) is a stable black solid that does not form water compounds upon exposure to air but can absorb moisture. It is soluble in nitric acid and decomposes into sub-cobalt oxide above 1200 °C. In a hydrogen flame at 900 °C, it converts to metallic cobalt. Structurally, it can be represented as CoO·Co₂O₃. CoO converts to Co₃O₄ at 600–700 °C in air, and above 900 °C, CoO remains stable.
Applications
Catalysts & Catalyst Carriers – Effective in organic synthesis, oxidation reactions, and heterogeneous catalysis.
Electrochemical Applications – Active material for lithium-ion battery electrodes, supercapacitors, and electrochromic devices.
Ceramics & Glass – Used as a colorant for glass, porcelain, enamels, and specialized pigments.
Magnetic & Electronic Uses – Suitable for magnetic materials, semiconductors, temperature and gas sensors, and electronic ceramics.
Abrasives & Coatings – Utilized in grinding wheels, filter materials, and solar energy absorber coatings.
Additional information
| Gram | 25 g, 100 g, 500 g, 1000 g |
|---|