Phase Relations in a NaFeO-SnO (0-50 mol.% SnO) System and the Crystal Structure and Conductivity of NaFeSnO.

With the view of developing new materials for sodium and sodium-ion power sources, NaFeO-SnO (0-50 mol.% SnO) powders were synthesized using a solid state method, and their phase composition and crystal structure were studied. A phase of the NaFeSnO composition with a layered rhombohedral structure of the α-NaFeO type was found when the tin dioxide content was 20 mol.

Physico-Chemical Properties of NaVO Prepared by Solid-State Reaction.

Sodium-vanadium oxide NaVO is synthesized via solid-state method and optimum synthesis conditions are chosen based on the data of DSC and TG analysis. The material synthesized is characterized by X-ray phase analysis, Raman spectroscopy and scanning electron microscopy. The ratio V/V in the sample obtained is determined by X-ray photoelectron spectroscopy.