Solid-state synthesis and electrochemical properties of SmVO_4 cathode materials for low temperature SOFCs  

作　　者：SUN Xueli LI Song SUN Juncai 

机构地区：[1]Institute of Materials and Technology, Dalian Maritime University, Dalian 116026, China Institute of Materials and Technology, Dalian Maritime University, Dalian 116026, China Institute of Materials and Technology, Dalian Maritime University, Dalian 116026, China

出　　处：《Rare Metals》2006年第z1期240-242,共3页稀有金属（英文版）

摘　　要：A new cathode material fabricated by solid state reaction method was reported. The SmVO4 powder was obtained by firing the mixture of Sm2O3 and V2O5 powders in the temperature range of 700-1200 ℃. Its structure was identified by X-ray diffraction method and the electrochemical properties of SmVO4 as cathodes for solid oxide fuel cells (SOFCs) were investigated in single unit cell at the temperature ranged from 450-550 ℃. The results of the single fuel cell unit show that the maximum current densities are 641, 797, 688 mA·cm-2 and the maximum power output are 165, 268, 303 mW·cm-2 and the open circuit voltage are 1.04, 0.96, 0.92 V at 450, 500 and 550 ℃, respectively.A new cathode material fabricated by solid state reaction method was reported. The SmVO4 powder was obtained by firing the mixture of Sm2O3 and V2O5 powders in the temperature range of 700-1200 ℃. Its structure was identified by X-ray diffraction method and the electrochemical properties of SmVO4 as cathodes for solid oxide fuel cells (SOFCs) were investigated in single unit cell at the temperature ranged from 450-550 ℃. The results of the single fuel cell unit show that the maximum current densities are 641, 797, 688 mA·cm-2 and the maximum power output are 165, 268, 303 mW·cm-2 and the open circuit voltage are 1.04, 0.96, 0.92 V at 450, 500 and 550 ℃, respectively.

关 键 词：SOFC SmVO4 CATHODE solid-state reaction electrochemical properties 

分 类 号：TG146.4[一般工业技术—材料科学与工程]