(64c) Thermochemical Conversion of Carbon Dioxide into Fuel Using Combustion Synthesized Mg-Ferrite

The incessant release of carbon dioxide supports global warming and hence carbon dioxide is considered as one of the major greenhouse gases. Chemical industry, automobile exhaust, and combustion of fossil fuels are considered as the major sources of the continuous emission of carbon dioxide. One of the ways to decrease the carbon footprint is to utilize the carbon dioxide for the production of fuels. Metal oxide based thermochemical redox cycle can split the carbon dioxide into carbon monoxide which can be further combined with the hydrogen produced via water splitting to produce syngas (precursor for the production of liquid transportation fuel). The redox cycle can be driven by the utilization of the concentrated solar power and hence the fuel produced can be termed as the solar fuel. This investigation reports utilization of Mg-ferrite towards the conversion of carbon dioxide. Solution combustion synthesis method is applied for the production of Mg-ferrite. After characterizing the composition, morphology, surface area, and other physico-chemical properties, the derived Mg-ferrite is tested towards thermochemical CO₂ splitting using a thermogravimetric analyzer (TGA). The long-term stability of the Mg-ferrite and the influence of the operating temperatures on the fuel production, redox reactivity, kinetics, and thermodynamics efficiency of the process is investigated.