Abdelrahman Badawy*, Ahmed M. Rashad, Shaimaa M. Ibrahim and Sahar M. El-Khouly
The role of CeO2-doping (0.75-3 mol%) and calcination temperature on solid-solid interaction between ferric and cadmium oxides yielding cadmium ferrites was investigated. The results revealed that ceria add enhanced the ferrite formation by heating at 600-700 ºC via dissolution of some dopant cation in the lattice of CdO with subsequent formation of anionic vacancies and/or formation of higher valency cadmium cation (Cd(2+δ)+). SBET of solids calcined at 500 oC increased by CeO2-doping, while opposite trend for solids calcined at 600 and 700 oC. Magnetization increased by CeO2-doping that might be due to the enhancement of cadmium ferrite formation. Ethanol conversion increased by increasing CeO2-doping. Dehydrogenation product (acetaldehyde) was mainly the yield of ethanol conversion. The maximum yield of acetaldehyde (92.97%) carried out for solids doped with 3 mol% CeO2.
Cadmium ferrite, ethanol conversion, ionic vacancies, CeO2- doping, dehydrogenation of ethanol
Physical Chemistry Department, National Research Centre, Dokki, Cairo, Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Physical Chemistry Department, National Research Centre, Dokki, Cairo, Physical Chemistry Department, National Research Centre, Dokki, Cairo