Cobalt Oxide Nanopowder Co3O4 
Formula Co3O4
Purity 99%
Particle Size 30 nm
SSA 50 m2/g
Morphology spherical
Bulk Density 0.57 g/cm3
True Density 6.11 g/cm3
Appearance Black
CAS Number 1308-06-1
Molecular Weight 74.93


In nanomaterials, cobalt oxide nanopowder can refer to one of three related but distinct nanopowders: CoO, Co2O3, and Co3O4. In each form, cobalt oxide nanopowder serves as a vital inorganic material with a variety of applications. Each is a fine powder composed of particles of cobalt oxide smaller than 100nm in diameter, but from there they vary in properties and applications.
CoO is a greyish green powder; Co2O3 is a greyish black powder; Co3O4 is a black powder available with smaller particle sizes.



1- Catalysts: As is the case for many nanomaterials, cobolt oxide nanopowders have been utilized as catalysts and catalyst carriers for a variety of reasons. Most notably, they’re useful in organic synthesis, in heterogenous catalysts, and as an electroactive catalyst material.

2- Electronics: The unique properties of cobalt oxide nanopowders see them used and experimented with in a number of electronic applications, including semiconductors, superconductors, electronic ceramics, lithium ion batteries, electrochromic devices, and solar energy absorbers.

3- Ceramics: Various ceramics utilize cobalt oxide nanoparticles in their production, particularly those for use in electronic applications.

4- Pigments: In glass manufacture, cobalt oxide nanopowders primarily act as pigments and colorants. Cobalt oxide also plays this role in porcelain and certain enamels.

5- Sensors: The properties of cobalt oxide makes each of value in the creation of certain sensors. Sensors utilizing cobalt oxide nanopowders include gas sensors and temperature sensors.

6- Coatings: Enamels, grinding wheel surfaces, and other coatings utilize cobalt oxide in one of its various permutations. As with many nanopowders, the nanoscale dimensions of cobalt oxide nanoparticles make it particularly useful in places where traditional materials couldn’t work as a coating.

7- Filters: Various filters, including senior goggles, utilize cobalt oxide nanopowders in their production.