Effect of Hf-doping on electrochemical performance of anatase TiO₂ as an anode material for lithium storage.

ABSTRACT: Hafnium-doped titania (Hf/Ti = 0.01; 0.03; 0.05) had been facilely synthesized via a template sol-gel method on carbon fibre. Physico-chemical properties of the as-synthesized materials were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive X-ray analysis, scanning transmission electron microscopy, X-ray photoelectron spectroscopy, thermogravimetry analysis and Brunauer-Emmett-Teller measurements. It was confirmed that Hf⁴⁺ substitute in the Ti⁴⁺ sites, forming Ti_1-x Hf _x O₂ (x = 0.01; 0.03; 0.05) solid solutions with an anatase crystal structure. The Ti_1-x Hf _x O₂ materials are hollow microtubes (length of 10-100 µ

SUBMITTER: Gnedenkov SV 

PROVIDER: S-EPMC6030266 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature