Reversible Reaction with CO2 and Control of CO2 Absorption/Desorption Properties of Ba2(Fe1−xInx)2O5 Solid Solutions

Abstract

Ba2(Fe1−xInx)2O5 was prepared by a solid‐state reaction under a N2 flow. It was revealed that the solid solutions had a cubic perovskite structure with disordered oxygen vacancies at room temperature. Thermogravimetry and X‐ray diffraction measurements revealed that Ba2(Fe1−xInx)2O5 can reversibly react with CO2. It was found that the equilibrium temperature of the reaction could be controlled by preparing solid solution.