Abstract
Perovskite type SrCo0.4Fe0.6O3-δ(SCF) membrane and a novel perovskite-related ZrO2 doped SrCo0.4Fe0.6O3-δ(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 2.68×10-7 mol·cm-2·min-1 and 97.76 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.
Original language | English |
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Pages (from-to) | 218-223 |
Number of pages | 6 |
Journal | Chinese Journal of Chemical Engineering |
Volume | 8 |
Issue number | 3 |
State | Published - Sep 2000 |