Investigation of novel anode NiO-La_0.3 Ce_0.7O_2-δ of IT-SOFC with LSGM-based electrolyte

NiO-La_0.3 Ce_0.7O_2-δ(LDC30) novel anode was investigated for IT-SOFCs (intermediate temperature-solid oxide fuel cells) with LaGaO₃-based electrolyte. The results showed that LDC30 has a suitable chemical compatibility with NiO and NiO-LDC30 has a good thermal expansion matching with LDC30 interlayer and LSGM(La_0.8 Sr_0.2 Ga_0.8 Mg_0.2O_3-δ) electrolyte, so NiO-LDC30/LDC30 was considered as a feasible and novel anode system. It was also shown that NiO content plays a key role on polarization performance and morphology of the anode. When the content of NiO was 60% (mass fraction), the polarization loss of anode was the lowest. Next we will optimize the porosity and sintering procedure to modify the microstructure and performance of the anode.