Abstract
To improve the intermediate-temperature performance of solid oxide fuel cells (SOFCs) and expand their applications requires mitigating anode activation polarization while maintaining long-term stability during use. The infiltration of nanoscale electrocatalysts into SOFC anodes has been shown to increase the number of reaction sites, thereby decreasing activation polarization. This study explores the impacts of liquid-phase infiltration of Ni and gadolinium-doped ceria (GDC), a Mixed Ionic and Electronic Conductor (MIEC), into both Ni-YSZ and Ni-MIEC anodes, where the YSZ has been doped with titanium dioxide to facilitate electronic conduction. Distribution of relaxation times (DRT) analysis is performed on Electrochemical Impedance Spectroscopy (EIS) spectra to deconvolute the kinetics of various charge transfer processes. Figure 1
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