Ion-exchange with Pd-Pt and Fe and their reduction to metallic state in zeolites : positron annihilation and Mössbauer studiesReport as inadecuate




Ion-exchange with Pd-Pt and Fe and their reduction to metallic state in zeolites : positron annihilation and Mössbauer studies - Download this document for free, or read online. Document in PDF available to download.



Abstract : Positron annihilation and Mössbauer-effect measurements were performed on fajausite X-, Y- and ZSM-5 zeolites in as-produced and also in ion-exchanged with Fe and Pd or Pt and subsequently reduced states. A correlation of the positron data with the filling-up of the cages of the zeolites due to the formation of metallic particles was found. The Mössbauer results revealed that the metallic particles are bimetallic.





Author: Zs. Kajcsos K. Lázár G. Brauer

Source: https://hal.archives-ouvertes.fr/



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