Jump to main content
Jump to site search

Issue 7, 1993
Previous Article Next Article

Catalytical conversion of silicon tetrachloride to trichlorosilane. Characterization of the nickel silicalite catalyst by ferromagnetic resonance spectroscopy

Abstract

The formation of nickel silicide in the reaction between nickel supported on silicalite and a gas mixture (molar ratio, H2 : SiCl4= 6 : 1) is studied. By ferromagnetic resonance (FMR) based Curie temperature measurements, it was determined that the formation of metal silicides starts at 723 K. From the signal intensity, it follows that the Si content of the silicides increases with increasing temperature from ca. 1 atom% at 723 K up to 6 atom% at 865 K. The geff values suggest the presence of two kinds of alloy containing ca. 1 atom% Si: one kind, produced at temperatures up to 723 K, forms a shell layer at the surface of the Ni metal particle, and the other, generated by decomposition of silicon-rich silicides formed at 865 K, is homogeneously alloyed over the whole particle.

Back to tab navigation

Article type: Paper
DOI: 10.1039/FT9938901085
Citation: J. Chem. Soc., Faraday Trans., 1993,89, 1085-1087
  •   Request permissions

    Catalytical conversion of silicon tetrachloride to trichlorosilane. Characterization of the nickel silicalite catalyst by ferromagnetic resonance spectroscopy

    W. Mörke, F. Vogt, K. Wendlandt, H. Walter and G. Roewer, J. Chem. Soc., Faraday Trans., 1993, 89, 1085
    DOI: 10.1039/FT9938901085

Search articles by author

Spotlight

Advertisements