The physicochemical properties of the synthesized catalysts
were studied by various characterization techniques such as differential thermal analysis/thermogravimetric analysis (Perkin
Elmer Pyris 1), N2 adsorptionedesorption (Micromeritics, ASAP
2020), X-ray diffraction (Bruker D8 X-ray diffractometer equipped
with a Cu anode), temperature programmed desorption of CO2
(TPDRO1100 MS, CE Instruments) and energy dispersive X-rays
(JSM-7610F).