In situ high pressure NMR study of the direct synthesis of NaAlH4

Phys Chem Chem Phys. 2013 May 7;15(17):6179-81. doi: 10.1039/c3cp50777g.

Abstract

The direct synthesis of NaAlH4 has been studied, for the first time, by in situ (27)Al and (23)Na wide-line NMR spectroscopy using high pressure NMR apparatus. Na3AlH6 formation is observed within two minutes of hydrogen addition, while NaAlH4 is detected after a total of four minutes. This indicates the formation of the hexahydride does not proceed to completion before the formation of the tetrahydride ensues.

MeSH terms

  • Aluminum / chemistry
  • Aluminum Compounds / chemical synthesis*
  • Aluminum Compounds / chemistry
  • Magnetic Resonance Spectroscopy
  • Pressure
  • Sodium / chemistry
  • Sodium Compounds / chemical synthesis*
  • Sodium Compounds / chemistry

Substances

  • Aluminum Compounds
  • Sodium Compounds
  • sodium aluminum hydride
  • Sodium
  • Aluminum