Investigations of crystal structures and vibrational properties on hydrogen release from complex hydrides

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820313
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: SATO Toyoto 東北大学, 金属材料研究所, 助教 (20455851)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: エネルギー材料 / 錯体水素化物 / 結晶構造 / 格子振動 / X線回折 / 中性子散乱

Outline of Final Research Achievements

Al-based complex hydrides, which are composed of ionically bonded metal cations Mn+ (n: valence of M) and a complex anion ([AlH4]-), have potentials for hydrogen storage due to the high gravimetric hydrogen density and suitable hydrogen release temperature. However, mechanisms of hydrogen release reaction on the Al-based complex hydrides have not yet been understand properly. In this study, we have systematically synthesized high purity Al-based complex hydrides, of which crystal structures, vibrational dynamics and hydrogen release properties have been investigated. From the results, we have elucidated further insight into the relations among them on the Al-based complex hydrides.

Free Research Field

材料工学