• Raman Spectroscopy Measurements of the Pressure−Temperature Behavior of LiAlH4
    J.C. Fallas, W.-M. Chien, D. Chandra, V.K. Kamisetty, E.D. Emmons, A.M. Covington, R. Chellappa, S.A. Gramsch, R.J. Hemley and H. Hagemann
    Journal of Physical Chemistry C, 114 (27) (2010), p11991-11997
    DOI:10.1021/jp1015017 | unige:14747 | Abstract | Article HTML | Article PDF
 
The pressure/temperature phase diagram of LiAlH4 has been constructed by using Raman spectroscopy data. In situ high pressure−temperature experiments were carried out using resistively heated diamond anvil cells up to 150 °C and 7 GPa. Room temperature phase transitions of monoclinic α-LiAlH4 → δ-LiAlH4 were observed at ~3.2 GPa. As the temperature is increased to ~100 °C, both the α and δ phases transform to β-LiAlH4 and remain stable up to 5.5 GPa. At temperatures greater than 300 °C, a new γ-LiAlH4 phase forms. Data of Konovalov (1995) has been used to define the phase boundary between β- and γ-LiAlH4 phases. We present a pressure−temperature phase diagram of LiAlH4 based using diamond anvil cells coupled with Raman spectroscopy.

Google

 


Redisplay in format 

                 

    in encoding 

  
Format for journal references
Format for book references
Last update Friday March 02 2018