Study of some spectral properties of nanocatalysts prepared for the mixed oxide system MoO3/Co2O3 and calcined at 600oC

• Publish Date: 18 - June - 2025

Research Abstract:

In this research, a mixed oxide catalysts of MoO3/Co2O3 was prepared using the method. The samples were calcined at a temperature of 600oC. Several techniques were used to characterize the prepared catalysts, including SEM, XRD, Raman spectroscopy. The SEM images of molybdenum oxide revealed that the particles have a rod-like morphology, whereas the particles in cobalt oxide images appeared to be nearly spherical in shape. A morphological integration between the two prepared oxide was observed in the mixed oxide samples, and all catalysts exhibited nanoscale dimensions. XRD analysis indicated that both molybdenum oxide and the mixed oxide samples exhibit an orthorhombic crystalline structure with nanoscale dimensions and the values of d range between 1.304 nm and 7.392nm. The Raman spectra revealed the presence of characteristic peaks attributed to molybdenum oxide in all the prepared catalysts, as well as the emergence of a new peak associated with the formation of the mixed CoMoO4 phase in the mixed oxide samples containing > 1 wt.% Co2O3.

Publishers:

Nojoom Al-Ghanom