A Novel Dense Mixed-Conducting Membrane for Oxygen Permeation

被引：0
|
作者：
徐南平
李世光
金万勤
时钧
机构：
来源：
Chinese Journal of Chemical Engineering | 2000年 / 03期
基金：
中国国家自然科学基金;
关键词：
dense membrane; perovskite-related; oxygen permeation; stability;
D O I：
暂无
中图分类号：
TQ028.8 [新型分离法];
学科分类号：
081701 ; 081704 ;
摘要：
Perovskite type SrCoFeO(SCF) membrane and a novel perovskite-related ZrOdopedSrCoFeO(SCFZ) membrane were successfully prepared by isostatic pressing.The sintered membraneswere characterized by high-temperature X-ray diffeaction (HTXRD) and energy dispersive spectroscopy (EDS).Theoxygen permeabilities of membranes have been measured in the temperature range of 923 K to 1243K.The oxygenpermeation fiux at 1l23K and activaion energy of SCFZ membrane with the thickness of 2mm are respectively2.68×10mol.cm.minand 97.76kJ.mol.The results of HTXRD in argon atmosphere and the oxygen per-meation experiment indicate that the SCFZ membrane is stable at elevated temperature and low oxygen partialpressure.
引用
收藏
页码：34 / 39
页数：6
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