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Ferromagnetic resonance investigation of dispersed Ni catalysts: epitaxial and textural effects from the support

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
52
Issue
3
Identifiers
DOI: 10.1016/0009-2614(77)80507-1
Disciplines
  • Physics

Abstract

Abstract Catalysts consisting of dispersed Ni particles supported on silica and alumina, with sizes ranging from 6 to 20 nm, have been studied by ferromagnetic resonance. For the Ni on Al 2O 3 catalyst, a textural promotion effect is shown to be present and it is attributed to the possible presence of NiAl 2O 4. The FMR data confirm the epitaxial growth of Ni on SiO 2 when Ni antigorite is reduced and show that some anisotropy is still present after sintering of the catalyst at about 1200K.

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