The Influence of CeO2-Doping of Nanosized Cadmium Ferrite on Catalytic Conversion of Ethanol

Author(s): Abdelrahman A. Badawy*, Ahmed M. Rashad, Shaimaa M. Ibrahim, Sahar M. El-Khouly.

Journal Name: Recent Innovations in Chemical Engineering
Formerly: Recent Patents on Chemical Engineering

Volume 13 , Issue 2 , 2020

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Background & Objective: 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 examined.

Methods and Results: The results exposed that ceria improves the ferrite formation by heating at 600-700ºC via the dissolution of some dopant cation in the lattice of CdO with the subsequent creation of anionic vacancies and/or formation of higher valency cadmium cation (Cd(2+δ)+). SBET of solids calcined at 500oC increased by CeO2-doping, while opposite trend for solids calcined at 600 and 700oC. The magnetic hysteresis loops of all samples showed room-temperature ferromagnetism with different hysteresis loop shapes.

Conclusion: 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.

Keywords: Cadmium ferrite, ethanol conversion, ionic vacancies, CeO2- doping, dehydrogenation of ethanol, solids calcined.

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Article Details

Year: 2020
Page: [159 - 169]
Pages: 11
DOI: 10.2174/2405520412666190919155906
Price: $95