Improving the Oxygen Permeability of Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ) Membranes by Laser Ablation

The surfaces of Ba0.5Sr0.5Co0.8Fe0.2O3-δ(BSCFO) membranes were decorated by laser ablation treatment in order to increase the specific surface of the membrane surface,and laser ablation treatment could improve the ability of oxygen surface exchange and enhance the oxygen permeation flux of the membranes.The arc shape stripes with width about 150μm and depth about 25μm increase the specific surface of the membrane surface significantly,which were made by laser ablation treatment.XRD patterns showed that the BSCFO phase structure was kept after laser ablation treatment.The oxygen permeation fluxes through the membranes after laser ablation treatment were enhanced,and laser ablation treatment with cross stripes pattern on both sides of the membranes had a signification impact on the oxygen permeation flux.The oxygen permeation flux through the membrane with cross stripes pattern on both sides was 34% higher than that through membranes without laser ablation treatment.