A PEROVSKITE TYPE MIXED CONDUCTOR MEMBRANE FOR OXYGEN SEPARATION AND THE MANUFACTURING METHOD

摘要

PURPOSE: A perovskite type mixed conductive oxygen separating film and a method for manufacturing the same are provided to improve the phase stability of the oxygen separation film regardless of the reduction gas and carbon dioxide atmosphere by replacing cobalt element with titanium element. CONSTITUTION: A method for manufacturing a perovskite type mixed conductive oxygen separating film includes the following: Ethylene glycol and citric acid are added in a metal nitrate solution containing titanium element in order to prepare a mixed solution(S110). The mixed solution is esterificated and is undergone a pyrolysis process in order to obtain synthesized powder(S120, S130). The synthesized powder is compression-molded to obtain an oxygen separating film, the composition of which is La_0.6Sr_0.4Ti_xFe_1-xO_3-δ(0.1<x<0.4)(S140).