Particular properties of Ti2O and TiNx nanoparticles prepared by thermal decomposition

Abstract Particular properties of Ti 2 O and TiN x prepared by thermal decomposition were introduced. A precursor prepared by titanium powder reacting with oxalate acid was thermally decomposed in nitrogen atmosphere at 840°C for 15 min, and relatively pure Ti 2 O was then obtained. Conductive TiN x was also prepared after altering reaction conditions. Samples were characterized by resistivity, X-ray powder diffraction, transmission electron microscope, Ultraviolet-Visible diffuse reflection, and electromagnetic shielding efficiency. The results indicate that both Ti 2 O and TiN x have good conductivity. Moreover, Ti 2 O shows a better solar photocatalytic activity and TiN x does well in the electromagnetic shield.