Ruthenium doped LSCF based cathode for enhanced performance of solid oxide fuel cells Abid Ullah Department of Advanced Energy and System Engineering, Korea Institute of Energy Research, South Korea Recently a tremendous upsurge in the research of Solid oxide fuel cells (SOFCs) has been documented due to cheap electricity production without harming the environment. The development of efficient SOFCs requires more robust cathode for oxygen reduction. Until yet a copious amount of research has been done on varieties of materials including LSCF. In this work, Ruthenium is doped on the LSCF forming nanostructured Ru-LSCF with various Ru quantities. The Ru-LSCF catalyst is prepared via simplistic technique “Glycine combustion process”, producing evenly embedded Ru in LSCF perovskite materials leading to increased oxygen reduction reaction (ORR). The nanostructured Ru LSCF cathode showed polarization resistance of approximately 0.031 Ωm 2 at 750 0 C. The peak powers of approximately 1760.5, 1480.1, 893.3 mW/cm 2 were recorded at 750, 700, and 650 0 C, respectively. Ru LSCF was quantitatively optimized for enhanced power production with high precision calculation. The results shows that the Ru-LSCF optimum fabricated nanostructured cathode is promising catalyst for the reduction of oxygen at the cathode side for highly durable SOFCs. References 1. Li, B., He, S., Li, J., Yue, X., Irvine, J. T., Xie, D., ... & Ni, C. (2020). A Ce/Ru codoped SrFeO3− δ perovskite for a coke- resistant anode of a symmetrical solid oxide fuel cell.ACS Catalysis,10(24), 14398-14409. 2. Liu, D. J., & Krumpelt, M. (2005). Activity and Structure of Perovskites as Diesel ‐ Reforming Catalysts for Solid Oxide Fuel Cell.International Journal of Applied Ceramic Technology,2(4), 301-307. 3. Yoon, H., Zou, J., Sammes, N. M., & Chung, J. (2015). Ru-doped lanthanum strontium titanates for the anode of solid oxide fuel cells.International Journal of Hydrogen Energy,40(34), 10985-10993.
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