CO OXIDATION OF BI2MOO6 CATALYSTS

Abstract

The aim of this study is to characterize the structure and catalytic properties 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 appeared 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.