Progress in modification of BaCoO_3-based oxygen permeation membrane material by A or B-site doping

Research progress in modification of BaCoO3-based oxygen permeation membrane material by A or B-site doping was introduced.A-site doping materials mainly included Ba0.5Sr0.5Co0.8Fe0.2O3-δ and La0.2Ba0.8Co0.8Fe0.2O3-δ,they had higher fine oxygen permeation rate and fine stability.B-site doping materials mainly included BaCo0.4Fe0.4Zr0.2O3-δ,BaCo0.7Fe0.2Nb0.1O3-δ and BaBi0.2Co0.2Fe0.6O3-δ,their A site was fully occupied by Ba.They had not only higher oxygen permeation rate,but also could keep stable structure after long-term work.