Stability and separation of phases in Pd and Fe exchanged NaX and NaZSM-5 catalysts in Co+H2 reaction

K. Lázár, B. M. Choudary, L. Guczi

Research output: Article

10 Citations (Scopus)

Abstract

Pd and Fe exchanged NaX and NaZSM-5 catalysts (Pd/Fe=5) were studied. The components formed in the course of hydrogen activation at 720 K and their transformations taking place during treatments in CO+H2 at 570 and 500 K are described. PdxFe, Fe2+ ions in octahedral and tetrahedral environments and x-iron carbide components are identified. The bimetallic component is not affected by the CO+H2 treatment. The Fe2+ ions located only in tetrahedral environment were transformed into iron carbide in the X zeolite framework, while the Fe2+ ions of octahedral environment were also transformed in part to carbide in the ZSM-5 lattice.

Original languageEnglish
Pages (from-to)591-597
Number of pages7
JournalHyperfine Interactions
Volume46
Issue number1-4
DOIs
Publication statusPublished - márc. 1 1989

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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