Study on the preparation of Ni-SDC porous anode

The porous NiSDC cermet, which has been used as the anode for solidoxide fuel cells (SOFC) are fabricated by drypressing process. The effects of the press process and sintering process on the density and porosity were investigated. The microstructure of NiSDC cermet were analyzed by scanning electron microscopy (SEM) and Xray diffractometer. The TG curve that NiO was reduced to Ni was conducted by DSC/TG thermal analyzer. The results show that the NiO has been reduced in H2-Ar2 at 850～900 °C for 2 hour to obtain NiSDC cermet. The microstructure and pore distribution of NiSDC cermet are homogenous and the fine SDC grains were uniform dispersed in Ni skeleton network.