Electrochemical property of multi-layer anode supported solid oxide fuel cell fabricated through sequential tape-casting and co-firing

• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2019,（4）
• 页码范围: 695-701
• 页数: 7页
• 语种: 英文

摘要

In this work,a multi-layer anode supported solid oxide fuel cell (SOFC) is designed and successfully prepared through sequential tape casting and co-firing.The single cell is consisted of NiO-3YSZ (3YSZ:3 mol.％ yttria doped zirconia) anode support,NiO-8YSZ (8YSZ:8 mol.％ yttria stabilized zirconia) anode functional layer,dense 8YSZ electrolyte layer,and porous 3YSZ cathode scaffold layer with infiltrated La0.6Sr0.4Co0.2Fe0.8Q3-δ cathode.The clear interfaces and good contacts between each layer,without element inter-diffusion being observed,suggest that this sequential tape casting and co-firing is a feasible and successful route for anode supported single cell fabrication.This cell exhibits remarkable high open circuit voltage of 1,097 V at 800℃ under room temperature humidified hydrogen,with highly dense and gastight electrolyte layer,It provides a power density of 360 mW/cm2 under operation voltage of 0.75 V at 800℃ and a stable operation of ～110 h at 750℃ under current density of-300 mA/cm2,Furthermore,this cell also presents encouraging electrochemical responses under various anode hydrogen partial pressures and maintains high power output at low fuel concentrations.