Graphene-oxide-wrapped ZnMnO as a high performance lithium-ion battery anode.

Cation distribution between tetrahedral and octahedral sites within the ZnMnO spinel lattice, along with microstructural features, is affected greatly by the temperature of heat treatment. Inversion parameters can easily be tuned, from 5%-19%, depending on the annealing temperature. The upper limit of inversion is found for T = 400 °C as confirmed by x-ray powder diffraction and Raman spectroscopy.