Hydrogen isotope dynamic effects on partially reduced paramagnetic six-atom Ag clusters in low-symmetry cage of zeolite A

Research output: Contribution to journalArticle

  • Authors:
  • Amgalanbaatar Baldansuren


A well-defined, monodisperse Ag6 + cluster was prepared by mild chemical treatments including aqueous ion-exchange, dehydration, oxygen calcination at 673 K and hydrogen reduction 293 K, rather than autoreduction and irradiations with γ-ray and X-ray. H2 reduction was proved as a crucial step to form the nanosize cluster with six equivalent silver atoms. Hydrogen isotope exchange and dynamics were probed by EPR and HYSCORE to provide information relevant to the cluster geometry, size, charge state and spin state. Desorption experiments result in the deuterium desorption energy of 0.78 eV from the cluster, exceeding the experimental value of 0.38 eV for the single crystal Ag(111) surface. These experiments indicate that the EPR-active clusters are in delicate equilibrium with EPR-silent clusters.

Bibliographical metadata

Original languageEnglish
Pages (from-to)540-545
Number of pages6
JournalProgress in Natural Science
Issue number6
Early online date9 Dec 2016
StatePublished - Dec 2016