[2P01-53] Poster Presentation

[2P34] Improving the hydrogen release property of TiH₂ by ball milling and organic solvent method

*Mei Yuan¹, Takahiro Kondo^2,3 (1. Degree Programs in Pure and Applied Sciences, Graduate School of Science and Technology, University of Tsukuba, 2. Institute of Pure and Applied Sciences, University of Tsukuba, 3. Advanced Institute for Materials Research (WPI-AIMR), Tohoku University)

TiH₂ is one of solid hydrogen storage materials, and it can also be used as a catalyst for other hydrogen storage materials to reduce the temperature at which it releases hydrogen. Therefore, the hydrogen-releasing performance of TiH₂ is particularly important. We focused on changing the size to increase its hydrogen release temperature. In our work, two methods are currently used to prepare small-sized TiH_2. The results suggest that ball milling produces smaller sized TiH₂ enables to reduce the first-step hydrogen release temperature about 150 ℃. TiH₂ combined with 2D materials shows a great potential to lower the hydrogen release temperature.