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Niobium-doped titania (TNO) film can be used as a transparent conductive oxide (TCO) film due to its excellent conductivity and visible transparency. The performances of TNO sputtering targets are thus critical issues in optimizing sputtered films. This study clarifies the influences of inert and reducing atmospheres on the microstructure, densification, crystal structure, and electrical properties of TNO sputtering targets. The results indicate that a sintering atmosphere of 90% Ar–10% H 2 can result in a lower sintered density, larger grain size, and lower resistivity than can an atmosphere of Ar, followed by one of air. Sintering in 90% Ar–10% H 2 or Ar obviously decreases the resistivity of TiO 2 , from >10 8 Ω cm to <10 −1 Ω cm, and the TNO target, from >10 1 Ω cm to <10 −1 Ω cm. The resistivity of TNO target sintered at 1200 °C in 90% Ar–10% H 2 is as low as 1.8×10 −2 Ω cm. [ABSTRACT FROM AUTHOR]

TiO 2 is one of the more promising anode materials for sodium-ion batteries, but its poor electrical conductivity and slow Na+ diffusion kinetics limit its further development. Herein, C, N, P self-doping KTi 2 (PO 4) 3 /TiO 2 composites were successfully prepared by using lotus pollen as bio-template. And the experimental results show that the introduction of heteroatom and KTi 2 (PO 4) 3 into TiO 2 greatly contributes to improving the conductivity and Na+ mobility of TiO 2. The strategies provided in this paper can not only provide new ideas for the design and preparation of anode materials for TiO 2 -based sodium-ion batteries, but also provide new directions for the utilization of natural biomass. [Display omitted] ● The C, N, P self-doped KTi 2 (PO 4) 3 /TiO 2 with yolk shell structure will improve the conductivity and Na+ mobility of TiO 2. [ABSTRACT FROM AUTHOR]