Abstract
Nickel sintering studies are carried out on La0.3Sr 0.7TiO3+δ (LST) anode backbone impregnated with different quantities of nickel oxide (NiO). It is observed that 4 wt % NiO is sufficient to form a percolated network with low sintering at 800 ˚C using particle migration and coalescence process. Two different mechanisms contributing to sintering process are studied for particle size distribution (PSD). To enhance catalytic activity, cerium oxide (CeO2) is impregnated along with NiO in LST. The performance of bilayer, 4 wt % NiO-6 wt % CeO2-LST/YSZ provided less polarization resistance (Rp) of 0.5 Ω cm2and a maximum power density of 200 mWcm-2 (900 mA cm-2) compared to that without NiO and CeO2 impregnation.
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