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The effect of D2/H2 substitution on the Nbn+ + H2 reaction

  • A. B. Vakhtin
  • K. Sugawara
Conference paper

Abstract

The effect of D2/H2 substitution on the reactions of niobium cluster cations Nb n + (n = 5 − 9) with hydrogen was studied using a Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer combined with a laser-ablation/supersonic-jet external ion source. For most cluster sizes, it has been found that the reactions of the Nb n + clusters with H2/D2 mixture yield considerable amounts of Nb n HD+ even at small conversion of Nb n + . These results suggest a mechanism which involves the dissociative chernisorption of H2 on the niobium cluster, followed by the competing stabilization and back dissociation of the energized adduct.

PACS

36.40.Jn Reactivity of clusters 36.40.Wa Charged clusters 82.80.Ms Mass spectrometry 

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Copyright information

© Springer-Verlag Italia 1999

Authors and Affiliations

  • A. B. Vakhtin
    • 1
    • 3
  • K. Sugawara
    • 1
    • 2
  1. 1.National Institute for Advanced Interdisciplinary ResearchTsukubaJapan
  2. 2.National Institute of Materials and Chemical ResearchTsukubaJapan
  3. 3.Institute of Chemical Kinetics and CombustionNovosibirskRussia

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