Tuning the Ionic Conductivity of Electrolyte Material to Optimize/Enhance the Solid Oxide Fuel Cell Performance

Abstract

The world is using up non-renewable energy sources quickly. Fossil fuel-based energy supplies may run out in a century and two decades. Fossil fuels have many harmful effect on human health and environment. Although fuel cell have received a lot of interest because there great efficiency, simplicity, low impact on the environment, cost effective and fuel adaptability. All fuel cell types, solid oxide fuel cells (SOFCs) is gaining more popularity. Ba-SDC, Sr-SDC, Ca-SDC & Ti-SDC was used as an electrolyte improve properties of solid oxide fuel cell. Due to this purpose electrolyte material was synthesized by co-precipitation method. Prepared material analyzed by various technique such as Raman, UV-Visible, Fourier transform infrared spectroscopy, Conductivity measurement & Open circuit voltage (OCV). Raman sample expose strong peak between 600cm-1 to 1200 cm-1, which may be predict the vibration mode and change in structure. It describes the kind of shifting that occur in prepared material. The presence of blue shift in material may be shows heavy atoms in material by which its bound length got shorter and the red shift predict bound length increase by increase by wavelength also it shows the active modes (F1g, A1g and Eg). By UV-visible, synthesized sample's band gap and absorbance are detected. FTIR provides information on the presence of functional groups in materials as well as the organic or inorganic behavior of manufactured materials. With the aid of temperature dependent EIS, the conductivity of materials may be computed. Ti-SDC shows maximum conductivity at 700°C and having value 0.090 S/cm. Using hydrogen as fuel improves the conductivity of materials by utilizing fuel cell performance at temperatures ranging from 500°C to 700°C.