Is Co3O4 magnetic?

Is Co3O4 magnetic?

The spinel cobalt oxide Co3O4 is a magnetic semiconductor and widely used catalyst for a variety of reactions.

Why is Co3O4 normal spinel?

5) FeCr2O4 is a normal spinel since the divalent Fe2+ is a high spin d6 ion with CFSE = 4 Dq and the trivalent Cr3+ is a high spin d3 ion with CFSE = 12 Dq. Hence Cr3+ gets more OSSE while occupying octahedral sites. 6) Co3O4 is a normal spinel.

Is cobalt an oxide?

Cobalt oxide is a family of chemical compounds consisting of cobalt and oxygen atoms. Cobalt(II) oxide (cobaltous oxide), CoO. Cobalt(III) oxide (cobaltic oxide), Co2O.

What is spinel structure?

A spinel unit-cell is made up of eight FCC cells made by oxygen ions in the configuration 2×2×2, so it is a big structure consisting of 32 oxygen atoms, 8 A atoms and 16 B atoms. Depending on how cations occupy different interstices, spinel structure can be Normal or Inverse.

What are spinels and their descriptive structure category?

Normal spinel structures are usually cubic close-packed oxides with eight tetrahedral and four octahedral sites per formula unit. The tetrahedral spaces are smaller than the octahedral spaces. B ions occupy half the octahedral holes, while A ions occupy one-eighth of the tetrahedral holes. The mineral spinel MgAl. 2O.

What is the structure of co3o4?

Structure. Co3O4 adopts the normal spinel structure, with Co2+ ions in tetrahedral interstices and Co3+ ions in the octahedral interstices of the cubic close-packed lattice of oxide anions.

Is cobalt oxide magnetic?

A related material is cobalt(II,III) oxide, a black solid with the formula Co3O4….Cobalt(II) oxide.

What is spinel structure in solid state?

Spinel, MgAl2O4 (download cif), is a rare gemstone that was used to imitate rubies. The structure has face-centered cubic symmetry, and is a little heavy to understand. The general formula is AB2O4. The oxygens form an fcc lattice. The A cations occupy tetrahedral holes, and the B cation occupy octahedral holes.

Why is Fe3O4 inverse spinel?

For the inverse spinel Fe3O4 (magnetite) the situation is directed by the balance of what the Fe(II) ion prefers and here the stabilisation of the d6 high spin Fe(II) in an octahedral field is higher than that in a tetrahedral field as long as we remember that the splitting of the d orbitals is much smaller for a …

What is the name of Co3O4?

Cobalt tetraoxide
Cobalt tetraoxide | Co3O4 – PubChem.

What are the properties of cobalt oxide?

Cobalt Oxide Nanoparticles Properties (Theoretical)

What is the structure of cobalt oxide?

Cobalt(II,III) oxide is an inorganic compound with the formula Co3O4. It is one of two well characterized cobalt oxides. It is a black antiferromagnetic solid. As a mixed valence compound, its formula is sometimes written as CoIICoIII2O4 and sometimes as CoO•Co2O3.