CO OXIDATION OF BI2MOO6 CATALYSTS

The aim of this study is to characterize the structure and catalytic p roperties of Bi2MoO6 compounds, for CO oxidation. These catalysts were prepared by solid state methods with an intended atomic ratio Bi/Mo = 2. X-ray diffraction shows die presence of a Koechlinite phase in the samples calcined at low temperature, and a gamma phase (Watanabe) in die samples calcined at high temperature. However, all samples appeare d to be bismuth deficient (compared to the stoichiometric ratio of two ), as indicated by Auger analysis. The catalytic activity shows a CO2 yield better than 40% for these catalysts.