Synthesis, characterisation and structural analysis of gics based on lithium hydride

✍ Scribed by L. Elansari; A. Ramdani; D. Guerdrard

• Book ID: 104107019
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 461 KB
• Volume: 35
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/s0008-6223(96)00149-2

✦ Synopsis

The intercalation of lithium hydride into graphite is made possible through the presence of potassium. The influential factors for the intercalation are the K/LiH ratio and the temperature. The mechanism of the intercalation is described for 35% in weight of potassium and a temperature of 420°C. The compounds are characterised by their colours, the volume increase, weight uptake and by X-rays. The experimental electronic density along the c axis is compared to that based on-a model. The h@ reflections allow us to determine the structure and the hexagonal unit cell: a=4.95 A, c=2&= 17.84 A for stage 1. The first-stage compound K*LiHC, presents a very high alkali metal/carbon ratio (3:8) which makes this phase one of the richest metal-containing GICs.