Stability and hydrogenation of "bare" gadolinium nanoparticles

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

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)


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
Issue number1
Publication statusPublished - 13 Jan 2005


  • core shell particles
  • gadolinium
  • nanoparticles
  • metal


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