CoFe2O4 has also the benefits to be rare-earth free, which makes it a good substitute for Terfenol-D.[3] Moreover, its magnetostrictive properties can be tuned by inducing a magnetic uniaxial anisotropy.
The induced magnetic anisotropy in cobalt ferrite is also beneficial to enhance the magnetoelectric effect in composite.
[8] Cobalt ferrite can be also used as electrocatalyst for oxygen evolution reaction and as material for fabricating electrodes for electrochemical capacitors (also named supercapacitors) for energy storage.
Cobalt ferrite prepared with controlled morphology and size to enhance the surface area, and thus the number of active sites, has been published.
Nanostructures of cobalt ferrite with different shape can be synthesized on conducting substrates, such as reduced graphene oxide, to alleviate this disadvantage.