Spectroscopic and catalytic study on metal carbonyl clusters supported on Cab-O-Sil. III. Application of low-temperature, high-field Mössbauer spectroscopy and ferromagnetic resonance for characterizing FeRu bimetallic catalysts

K. Lázár, W. M. Reiff, W. Mörke, L. Guczi

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22 Citations (Scopus)

Abstract

Low-temperature, high external magnetic field Mössbauer spectroscopy and ferromagnetic resnance were used to characterize iron and iron-ruthenium bimetallic catalysts derived from molecular clusters and supported on Cab-O-Sil. The Ru Fe ratio varied between 1.6 and 6.0. These two methods enabled it to be unambiguously established that paramagnetic iron-ruthenium bimetallic particles of high dispersion are always present along with iron oxide after reduction at high temperature and in the CO + H2 reaction. Thus, for the catalysts investigated earlier (see J. Catal. 87, 179, 1984) the catalytic behavior is attributable to iron-ruthenium bimetallic particles. A value of 3 nm has been estimated for the diameter of ferromagnetic metallic particles.

Original languageEnglish
Pages (from-to)118-129
Number of pages12
JournalJournal of Catalysis
Volume100
Issue number1
DOIs
Publication statusPublished - Jul 1986

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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