A novel dense mixed-conducting membrane for oxygen permeation

被引：0
|
作者：
Xu, NP [1 ]
Li, SG [1 ]
Jin, WQ [1 ]
Shi, J [1 ]
机构：
[1] Nanjing Univ Chem Technol, Membrane Sci & Technol Res Ctr, Nanjing 210009, Peoples R China
来源：
CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2000年 / 8卷 / 03期
关键词：
dense membrane; perovskite-related; oxygen permeation; stability;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Perovskite type SrCo0.4Fe0.6O3-delta (SCF) membrane and a novel perovskite-related ZrO2 doped SrCo0.4Fe0.6O3-delta(SCFZ) membrane were successfully prepared by isostatic pressing. The sintered membranes were characterized by high-temperature X-ray diffraction (HTXRD) and energy dispersive spectroscopy (EDS). The oxygen permeabilities of membranes have been measured in the temperature range of 923 K to 1243 K. The oxygen permeation flux at 1123 K and activation energy of SCFZ membrane with the thickness of 2 mm are respectively 2.68 x 10(-7) mol cm(-2) min(-1) and 91.76 kJ.mol(-1). The results of HTXRD in argon atmosphere and the oxygen permeation experiment indicate that the SCFZ membrane is stable at elevated temperature and low oxygen partial pressure.
引用
收藏
页码：218 / 223
页数：6
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