| 초록 |
High oxygen permeability and structural stability are required in the presence of high concentrations of CO2 for application of oxygen transport membrane in the oxy-fuel combustion process. Cu-containing dual-phase membranes were prepared with one-pot method and citric acid sol-gel process. After calcination of the powder, the dual-phase membranes were prepared by uniaxially pressing the powder. The dual-phase membranes were sintered at high temperature. The phase structures and the microstructures of the membranes were characterized by XRD, SEM analysis. The oxygen permeation fluxes of Cu-containing dual-phase membranes were evaluated with CO2 as the sweep gas. The long-term CO2 stability of membrane was studied for more than 200 h. |
