Abstract
A new kind of composite material has been developed to use for electrochemical conversion in solid oxide fuel cells (SOFCs) and semi-ionic fuel cells (SIFCs). The developed composite material based on Ni0.1Cu0.1Ce0.8, NiCuCeO with different ratios exhibited the exceptional properties of MIECs. Here the material 8NC2C employed in SOFC showed good electronic, ionic conductivity and total conductivity 1.480, 0.098 and 1.578 S/cm respectively. However, by comparison material composition 8NC2C rendered the open circuit voltage (OCV) 1.097 V and fuel cell performance 765.099mW/cm2at 550°C for SOFC and reasonably good value of good fuel cell performance of 678.659 mW/cm2 at 550°C was observed by SIFC 4NC6C composition. The comparative study showed that total conductivity, fuel cell performance and polarization resistance of SOFC exhibited better results than SIFC nevertheless 4NC6C composition polarization resistance Rp was lower in SIFC over SOFC which establish the SIFC as a good candidate for fuel cell application.
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