Cobalt oxide nanoparticle

[3][4] The cathodes of lithium-ion batteries are often made of lithiated oxides of cobalt, nickel, or manganese, that can readily and reversibly incorporate lithium ions in their molecular structure.

Cobalt oxide nanomaterials, such as nanotubes,[1] offer high surface-to-volume ratio and short path lengths for lithium cation transport, leading to fast charging capabilities.

[2] Hollow nanospheres of cobalt oxide have been investigated as materials for gas sensor electrodes, for the detection of toluene, acetone, and other organic vapors.

[4] Cobalt oxide nanoparticles have been observed to readily enter cells, a property that conceivably could lead to applications in hyperthermic treatment, gene therapy and drug delivery.

[10][11] The precursor Co-salen can be obtained by reacting cobalt(II) acetate tetrahydrate in propanol at 50 °C under nitrogen atmosphere with the salen ligand (bis(salicylaldehyde)ethylenediimine).

Cobalt oxide (Co 3 O 4 ) nanoparticles anchored on a single sheet of graphene.
Hydrothermal Synthesis of Cobalt Oxide Hollow Sphere.
TEM image (right) of cobalt oxide nanoparticles produced by thermal decomposition of organometallic precursor Co-salen (left).