Abstract
In this research, we fabricated the nano-particle structure of solid oxide fuel cell (SOFC) anode film by thermal plasma spray coating, which produced a homogeneous layer of NiO/YSZ mixture coated on the YSZ substrate. Then, reduce the sample of NiO/YSZ to Ni/YSZ by mixture gas (7 % H2 + 93 % Ar) in high temperature (800℃). After reduction, the particle size of film of the SOFC anode is about 50 nm. In our sample, we estimated the number of three phase boundary (TPB) is about 3~4 orders of magnitude better than micro scale particles. The result can obviously increase the electrochemical reaction area in SOFC anode. The single layer of anode is highly conductive with 1000 S/cm in room temperature. We observed the morphology and structure of SOFC anode by X-ray powder diffraction (XRD) 、scanning electron microscopy (SEM) 、 atomic force microscopy (AFM) and Brunauer-Emmett-Teller (BET). These tools can help us observed the characteristic of nano-particle in SOFC anode.