Stability and hydrogenation of "bare" gadolinium nanoparticles

I. Aruna, B. R. Mehta, L. K. Malhotra, S. M. Shivaprasad

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Gadolinium nanoparticles, deposited via an inert gas evaporation method, show improved stability towards oxidation and it is therefore possible to carry out an ex-situ investigation on "bare" Gd nanoparticles, i.e., in the absence of a protective Pd layer, for the first time. A size-induced structural transformation from hexagonal close packing to the higher-symmetry face-centered cubic structure is observed. The important observation of hydrogen-Gd-nanoparticle interaction at room temperature and atmospheric pressure, without a Pd catalytic layer, makes Gd nanoparticles a potential candidate for hydrogen-sensing, switching, and storage applications.

Original languageEnglish
Pages (from-to)131-137
Number of pages7
JournalAdvanced Functional Materials
Volume15
Issue number1
DOIs
Publication statusPublished - 13 Jan 2005

Keywords

  • core shell particles
  • gadolinium
  • nanoparticles
  • metal

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