Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9610204 | Catalysis Today | 2005 | 8 Pages |
Abstract
The activity of various transition metal molybdates in the oxidative dehydrogenation of propane was tested. A series of nine molybdates of Zn, Cu, Co, Fe and Mn were synthesized by either a hydrothermal or a precursor method. The catalysts were characterized by X-ray diffraction (XRD), atomic absorption (AA), laser Raman spectroscopy (LRS), and scanning electron microscopy (SEM). The reaction was carried out at atmospheric pressure in a temperature range of 400-600 °C. The copper, cobalt and manganese molybdates were the best performing catalysts. The latter one reached selectivities around 50% at 20% conversion. All the catalysts kept the original structure after reaction. The best and most stable formulation was a cobalt molybdate, the only solid that maintained its surface area after reaction.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Luz Amparo Palacio, Adriana EchavarrÃa, Ligia Sierra, Eduardo A. Lombardo,