Li–N based hydrogen storage materials

✍ Scribed by Y. Nakamori; S. Orimo

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 80 KB
• Volume: 108
• Category: Article
• ISSN: 0921-5107
• DOI: 10.1016/j.mseb.2003.10.044

✦ Synopsis

In this report, we will first describe the phase determination before and after the hydrogenation of Li 3 N, and then clarify the fundamental hydrogen storage (desorption) properties with/without the partial cation substitutions in LiNH 2 . Combined analyses both the in situ Raman and thermal desorption spectroscopies indicate that the hydrogen desorption reaction from LiNH 2 starts around 550 K, and that from Li 2 NH around 700 K, respectively, in heating process under 0.1 MPa argon. The starting and ending temperatures for the hydrogen desoprtion reaction lowers about 50 K by the partial cation substitution of Li by Mg.