57 Scopus citations


Amorphous LaNi thin films over a wide range of composition were fabricated by electron beam evaporation in ultra-high vacuum. The structure and composition of these films were determined by X-ray diffraction (XRD), transmission electron microscopy (TEM) and electron probe microanalysis (EPMA). The reversible hydrogen storage capacity was determined by electrochemical cycling. The equilibrium electrochemical potential of these thin-film electrodes was also measured versus the change of hydrogen concentration, ΔH/M, in these films. The smallest value among the maximum ΔH/M of these amorphous films is about 0.38, which is still much larger than the one reported in the literature (∼0.1). Harris's model for hydrogen absorption in amorphous transition metal alloys is applied to the amorphous LaNi system. We found that both the LaNi3 and the La2Ni2 type of tetrahedral sites can store hydrogen.

Original languageEnglish
Pages (from-to)6-12
Number of pages7
JournalJournal of Alloys and Compounds
Issue number1
StatePublished - May 15 1995


  • Amorphous transition metal alloys
  • Hydrogen storage
  • Thin film electrodes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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