[1B14-18] Functional materials(2)

[1B16] Synthesis of Ti₂O₃ from TiO₂ with different particle size and morphology

○Asako Iwamoro¹, Masanori Nagao¹, Ryoichi Otomo², Yuichi Kamiya² (1. Graduate School of Environmental Science, Hokkaido University, 2. Faculty of Environmental Earth Science, Hokkaido University)

Ti₂O₃ is a kind of suboxides that contains trivalent titanium in its crystal structure. We have established a method for the synthesis of suboxides from rutile TiO₂ using TiH₂ as a reducing agent. This method enables us to synthesize various kinds of hypervalent titanium oxides such as Ti₂O₃, Ti₃O₅ and Ti₄O₇ while retaining the particle morphology of TiO₂. In this study, Ti₂O₃ was synthesized from various TiO₂ precursors with different crystal structures and particle size states.

Keywords:titanium suboxide, Ti2O3, morphology control