【摘要】 首次合成了Ｓｒ１０－ｎ／２ＢｉｎＦｅ２０Ｏｍ（ｎ＝２，４，６，８，１０等）系列氧化物透氧膜，它们具有较高的透氧能力，其中，样品ｎ＝１０在１１００Ｋ时的透氧率为０．９０ｍｌ（ＳＴＤ）／（ｃｍ２·ｍｉｎ），比Ｓｒ１－ｘＢｉｘＦｅＯ３高约两倍．Ｓｒ１－ｘＢｉｘＦｅＯ３（ｘ＝０．１，０．３，０．５）系列的透氧率随Ｂｉ含量增加而增大．通过两个系列氧化物的ＸＲＤ和化学组成的对比，发现Ｂｉ离子含量和晶格空位浓度对透氧能力大小起决定性作用．更多还原

【Abstract】 A new series of mixed conducting oxides were synthesized in solid state reaction method,they have high oxygen permeability which is two times higher than that of Sr 1- x Bi x FeO 3 ( x =0.1,0.3,0.5). In Sr 1- x Bi x FeO 3( x =0.1,0.3,0.5),the oxygen flux increases with the increasing Bi contents.Comparing their XRD and chemical components of the oxides,it’s found that the Bi contents and the oxygen vacancies control their oxygen permeability.更多还原