The purpose of our work was to study the synthesis-structure relations
hip of Sn-Mo catalysts, obtained by impregnation or coprecipitation, b
y Raman spectroscopy. These catalysts are used in the selective oxidat
ion of propane. Ex situ examination and comparison of the catalysts be
fore and after catalytic testing were also performed by Raman diffusio
n, in order to evaluate structural changes related to the catalytic pr
ocess.