Advanced research on hydrogen-metal interactions of hydrogen storage materials using synchrotron radiation X-rays

Machida, Akihiko; Saito, Hiroyuki; Matsumura, Daiju   ; Takeda, Yukiharu   

We have investigated the structural and electronic properties of the hydrides or hydrogen storage materials focusing on the hydrogen-metal interactions using synchrotron radiation X-rays. X-rays interact with electrons of atoms in materials, hence, we can use X-rays as one of the powerful probes for investigating the chemical bonding states. The hydrogen-metal interactions give us the important knowledge to develop the high performance hydrogen storage materials. In this paper, we present the recent results of our studies for the hydrogen storage materials. By using our measurement apparatuses and also using our developed techniques, we obtained the new knowledge of structural and electronic properties of hydrides and hydrogen storage materials.