We propose the use of porous substrates and thin films of oxygen permeable ceramics as a method for separating oxygen from air. The porosity and pore size of various Ce0.8Gd0.2O1.9; (CGO) porous substrates were modified in an attempt to optimize the oxygen permeable flux of CGO-CoFe2O4 thin films. The oxygen permeable flux density of the CGO-CoFe2O4 thin film coated on the porous CGO substrate was found to be 4.7 μmol cm-2 s-1 under a O2 partial pressure difference (-log(POII/POI)) of 4.5 at 1000°C. This value is about 20 times higher than that of the 1 mm thick bulk material.
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Science(all)
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering