Effect of surface oxide layer of aluminum and its alloy on high-pressure hydrogenation reactions; Implications for hydrogen storage

高圧水素化反応におけるアルミニウムおよびその合金の表面酸化膜の効果; 水素貯蔵材料開発への展開

齋藤 寛之; 高木 成幸*; 青木 勝敏*; 折茂 慎一*

Saito, Hiroyuki; Takagi, Shigeyuki*; Aoki, Katsutoshi*; Orimo, Shinichi*

We are trying to hydrogenate pure aluminum and aluminum-based alloys at high pressures less than 10 GPa and high temperatures less than 1000C in which hydrogen becomes extremely reactive and effects of the surface are expected to be suppressed. The reaction processes are investigated using an in situ synchrotron radiation X-ray diffraction technique.