Investigation of structural properties of peroxide type cathode electrodes

Environmental pollution has become one of the most critical and urgent problems worldwide in recent years. Using fossil fuels leads to air and water pollution, ecosystem degradation, and climate change. Therefore, developing clean alternative energy sources and low-carbon energy production technologies is essential. In this direction, interest in renewable energy systems and efficient energy production methods is increasing. Therefore, Dy (Dysprosium) based cathode electrode production has been carried out. Dy (Dysprosium) is an important research area in fuel cells, especially for solid oxide fuel cells (SOFCs). Cathode electrodes are components that directly affect the fuel cell's electricity production efficiency; therefore, high-performance cathode electrode materials are critical in increasing the efficiency of SOFC technology. For this purpose, five different cathode electrode samples formed using SrCO₃, Fe₂O₃, Dy₂O₃, and CoO compounds were prepared by solid-state reactions and X-ray diffraction (XRD) analysis was performed on these samples. These analyses were carried out to determine the structural properties of cathode electrodes. As a result, the cathode electrode sample named DS7CF, the sample with the highest SrCO3 contribution, has a reference code of 01-082-2445 and a chemical formula of Sr (Co0.81 Fe0.19) O2.78 and shows 55% compatibility with the cubic phase (δ1) of the compound when XRD analyzes are evaluated. In addition, the unit cell parameters of the cubic phase are a=3.84910, b=3.84910, and c=3.84910.