The Oxygen Permeability of La1-xSrxCo0.2Fe0.8O3-δ Membrane for Oxygen Separation

摘要：

A typical dense membranes of La1-xSrxCo0.2Fe0.8O3-δ(x=0.1, 0.2, 0.3, 0.4) have been synthesized successfully prepared by c itric method and sintering at 1300 ℃. The influence of Sr substitution in La site of the La1 -xSrxCo0.2Fe0.8O3-δPerovskite structure on the electrical conduction properties and oxygen permeation was investigated. The Sr substitution was compensated by formation of oxygen vacancies. LSCF-6428 showed best oxygen separation among La1-xSrxCo0.2Fe0.8O3-δ, x=0.1, 0.2, 0.3, 0.4. The oxygen flux of La0.6Sr0.4Co0.2Fe0.8O3-δ Membrane increased with increasing temperature, and the maximum oxygen permeation flux was 0.33 ml/cm 2 ·min at 950℃.

关键词： Perovskite Structure Oxygen Separation Membrane Oxygen Vacancies Oxygen Permeability

作者: Jung Hoon Park Jong Pyo Kim Sang Do Park

作者单位: Energy Conversion Research Dep., Korea Institute of Energy Research Carbon Dioxide & Sequestration Research Center, Korea Institute of Energy Research, P.O.Box 103, Yus

会议类型: 国际会议

会议名称: The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-14（万方平台首次上网日期，不代表论文的发表时间）