期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 43, 期 8, 页码 3421-3426出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2023.01.046
关键词
Hollow fiber inorganic membrane; Air separation; Oxygen flux; Perovskite
SrFe0.95Mo0.05O3-delta (SFM5) perovskite hollow fiber (HF) membranes with a finger-like structure were fabricated using a phase inversion technique. The oxygen flux through SFM5 hollow fiber membrane was evaluated and reached 0.64 mu mol/cm2 *s at T = 880 degrees C, which is 5 times higher than that of a disk SFM5 membrane (0.12 mu mol/ cm2 *s). A further increase in oxygen fluxes was attained by Ag deposition on the inner surface of SFM5 hollow fiber membrane. The oxygen flux of SFM5 HF membranes is governed by surface-exchange reactions on the permeate side. The equilibrium 3 -delta -lg pO2 -T diagrams showed that doping of SF by molybdenum leads to a broadening of the cubic perovskite phase stability region.
SrFe0.95Mo0.05O3-delta (SFM5) perovskite hollow fiber (HF) membranes with a finger-like structure were fabricated by a phase inversion technique. The oxygen flux through SFM5 hollow fiber membrane was evaluated and reached 0.64 mu mol/cm2 *s at T = 880 degrees C, which is 5 times higher than that of a disk SFM5 membrane (0.12 mu mol/ cm2 *s). A further increase in oxygen fluxes was attained by Ag deposition on the inner surface of SFM5 hollow fiber membrane. The oxygen flux of SFM5 HF membranes is governed by surface-exchange reactions on the permeate side. The equilibrium 3 -delta -lg pO2 -T diagrams showed that doping of SF by molybdenum leads to a broadening of the cubic perovskite phase stability region.
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