Sol-gel synthesis of cobalt-niobia catalysts

Parvulescu, V;Ruwet, Marie;Grange, Paul;Parvulescu, VI
(1997) XIIIth International Symposium on the Reactivity of Solids — Location: HAMBURG(Germany) (8.September.1996)

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  • Parvulescu, V
    Author
  • Ruwet, MarieUCLouvain
    Author
  • Grange, PaulUCLouvain
    Author
  • Parvulescu, VI
    Author
Abstract
Cobalt-niobia catalysts were prepared using different variants of the colloidal sol-gel technique and wetness impregnation. Characterization of these catalysts by XRD, FT-IR, XPS and TEM showed that phases structure as well as superficial composition depended on the preparation route. It was found that niobia exhibits a strong metal support interaction effect and this effect depends on the dimension of the metallic cobalt on the support surface. Reactivity of these catalysts was checked in n-butane hydrogenolysis, a well known structural sensitive reaction. The catalytic tests showed the influence of the catalysts features both on the reaction rate and selectivity.
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Parvulescu, V., Ruwet, M., Grange, P., & Parvulescu, V. (1997). Sol-gel synthesis of cobalt-niobia catalysts. Solid State Ionics, 101, 137-141. https://hdl.handle.net/2078.5/45819 (Original work published 1997)