81030-20-8Relevant academic research and scientific papers
Effect of yttrium oxide on the formation of the phase composition and porous structure of titanium dioxide
Shutilov,Zenkovets,Gavrilov, V. Yu.,Tsybulya
, p. 111 - 118 (2011)
The formation of the structure of TiO2 (anatase) doped with 1-5 mol % Y2O3 is reported. The dopant changes the anatase structure from regular to nanocrystalline. The nanocruystalline structure consists of incoherently intergrown 5- to 7-nm anatase crystallites (500°C) separated by interblock boundaries accommodating yttrium ions. The formation of the nanocrystalline anatase structure stabilizes small anatase crystallites and raises the anatase-to-rutile phase transition temperature above 900°C. Owing to this structure, the developed specific surface area and fine porous texture of yttrium oxide-doped titanium dioxide survive up to higher temperatures than those of undoped titanium dioxide.
