Synthesis of Sr2Fe1-xMnxNbO6-δ Powders and Their Stability as Electrode of Solid Oxide Electrolysis Cell

摘要：

　　Double-perovskite Sr2Fe1-xMnxNbO6-δ (x =0,0.1,0.2,0.3,0.5,0.8) (SFMN) powders which can be applied as the electrode of solid oxide electrolysis cells (SOEC),were synthesized by solid state reaction method after SrCO3,Fe2O3,MnO2 and Nb2O5 were mixed homogeneously and then calcined in different atmospheres at different temperatures.The influence of the preparation process on the structure and the morphology of the powder were investigated by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM).It is found that the formation of perovskite structure is directly related to the content of Mn and calcining temperature.Controllable synthesis of pure phase of double perovskite powders was realized after calcining forl2h at 1150 ℃ in air.Moreover,the experimental results show that the perovskite structure of SFMN is stable in whether oxidizing or reducing atmosphere,which indicates that this material has a potential to be used as electrode of solid oxide electrolysis cell.

关键词： Double-perovskites Solid oxide electrolysis cell Solid state reaction method

作者: Ben Ge Desheng Ai Changsheng Deng Jingtao Ma Xuping Lin

作者单位: State Key Laboratory of New Ceramics and Fine Processing,Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 1584-1587

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）