Abstract:
The great efficiency and fuel adaptability of ceramic fuel cells (CFCs) make them a promising route
towards sustainable energy conversion. However, cobalt, a vital component of conventional cathodes, is
expensive and scarce, which prevents the widespread use of CFCs. The catalytic investigation of cobaltfree
cathode materials, namely SrFeMoW, for enhanced CFC performance is the main topic of this research.
Our main objective is to improve the performance and temperature tolerance of the SOFC. We wish to
address a few problems that cause it to operate slowly and less effectively. The present study will employ
specialized manufacturing processes, including screen printing and tape casting, to regulate the component
thickness of the SOFC. This will enhance the SOFC's performance and help it conduct electricity more
effectively. I will make a Cobalt-free composite cathode which is cost-effective and which will operate at
lower temperatures. This cobalt-free cathode will be prepared with the help of the sol-gel method. Using a
variety of experimental methods, such as X-ray diffraction (XRD), Raman spectroscopy, Fourier
Transform Infrared Spectroscopy (FTIR), UV-Vis spectroscopy, electrochemical impedance spectroscopy
(EIS), and fuel cell testing, the study examines the structural, electrochemical, and catalytic characteristics
of SrFeMoW. These methods shed light on the material's electrical characteristics, phase purity, chemical
bonding, crystal structure, and electrochemical behavior.
The impact of several doping techniques and synthesis parameters (such as temperature and environment)
on the material's microstructure, oxygen reduction reaction (ORR) activity, and overall cell performance is
methodically assessed. Using a multi-technique characterization approach, gain a thorough grasp of the
structure-property interactions in SrFeMoW cathodes. Improve SrFeMoW stability and catalytic activity
by optimizing its production and processing. Examine how doping with different elements (such as
transition metals and rare-earth metals) affects the ORR kinetics and long-term durability. Compare the
performance of SrFeMoW-based cathodes with that of traditional cobalt-based cathodes in single cells.
