Ce0.8Sm0.2O2–δ―Sm0.1Sr0.9Cu0.2Fe0.8O3–δ dual-phase membranes were prepared with one-pot method and citric acid sol-gel process. After calcination of the powder at 850 ℃, the dual-phase membranes were prepared by uniaxially pressing the powder. The dual-phase membranes were sintered at 1150 ℃ for 5h with heating/cooling rates of 2 ℃/min. The phase structure and microstructure of the sintered membrane were studied by XRD and SEM. Elemental analysis of the membrane surface and cross section was performed. The oxygen permeation fluxes of Cu-containing dual-phase membranes were evaluated in the temperature range of 800―950 ℃ with He and CO2 as the sweep gas.

• 박세형(동국대학교, Dongguk University) | Se Hyung Park
• 김은주(동국대학교, Dongguk University) | Eun Ju Kim
• 이단비(동국대학교, Dongguk University) | Dan bi Lee
• 박정훈(동국대학교, Dongguk University) | Jung Hoon Park