The Carbon Dioxide Decomposition Reaction with (NixCu1?x)Fe2O4 Solid Solution

Abstract

The mechanisms of the redox reaction of (NixCu1—x)Fe2O4 solid solution were investigated by thermo-gravimetric analysis and X-ray diffraction experiments. The redox reaction was accelerated by a kind of a substituted divalent metal such as Ni and Cu. (NixCu1—x)Fe2O4 showed excellent reduction reaction with increasing Ni content and excellent CO2 decomposition with increasing Cu content. The CO2 decomposition ability of the reduced (NixCu1—x)Fe2O4 showed the maximum value at x = 0.5. CO2 was decomposed by oxidation of oxygen deficient FeO (FeO1—δ, 0 ≤ δ ≤ 1). The (Ni0.5Cu0.5)Fe2O4 solid solution is an excellent candidate for the practical application of the CO2 decomposition.