Thermodynamically destabilized hydride formation in “bulk” Mg–AlTi multilayers for hydrogen storage Academic Article uri icon

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abstract

  • Thermodynamic destabilization of MgH2 formation through interfacial interactions in free-standing Mg-AlTi multilayers of overall "bulk" (0.5 μm) dimensions with a hydrogen capacity of up to 5.5 wt% is demonstrated. The interfacial energies of Mg-AlTi and Mg-Ti (examined as a baseline) are calculated to be 0.81 and 0.44 J m(-2). The enhanced interfacial energy of AlTi opens the possibility of creating ultrathin alloy interlayers that provide further thermodynamic improvements in metal hydrides.

authors

  • Kalisvaart, Peter
  • Shalchi-Amirkhiz, Babak
  • Zahiri, Ramin
  • Zahiri, Beniamin
  • Tan, XueHai
  • Danaie, Mohsen
  • Botton, Gianluigi
  • Mitlin, David

publication date

  • 2013