Author/Authors :
Xiaodong Ge، نويسنده , , Xiqiang Huang، نويسنده , , Yaohui Zhang، نويسنده , , Zhe Lu، نويسنده , , Jiahuan Xu، نويسنده , , Kongfa Chen، نويسنده , , Dawei Dong، نويسنده , , Zhiguo Liu، نويسنده , , Jipeng Miao، نويسنده , , Wenhui Su، نويسنده ,
Abstract :
A thin yttria-stabilized zirconia (8 mol% YSZ) film was successfully fabricated on a NiO-YSZ anode substrate by a screen-printing technique. The scanning electron microscope (SEM) results suggested that the YSZ film thickness was about 31 μm after sintering at 1400 °C for 4 h in air. A 60 wt% La0.7Sr0.3MnO3 + 40 wt% YSZ was screen-printed onto the YSZ film surface as cathode. A single cell was tested from 650 to 850 °C using hydrogen as fuel and ambient air as oxidant, which showed an open circuit voltage (OCV) of 1.02 V and a maximum power density of 1.30 W cm−2 at 850 °C. The OCV was higher than 1.0 V, which suggested that the YSZ film was quite dense and that the fuel gas leakage through the YSZ film was negligible. Screen-printing can be a promising method for manufacturing YSZ films for solid oxide fuel cells (SOFCs).
