利用固相合成法制备了P掺杂的BaCo-NbO3-δ钙钛矿透氧膜片,研究了P掺杂对该透氧膜材料透氧率及稳定性的影响.在850℃下,BCN膜在透氧过程中有部分六方相生成,造成其透氧量急剧衰减,其透氧稳定性较差.掺杂P后,尽管初始透氧量有所下降,但其稳定性得到了一定程度的改善,在850℃下透氧50 h后,BCNP0.03的透氧量仅下降约5％,仍可达到1.5 mL/(cm2·min).XRD、TPD及热分析结果表明,P掺杂后抑制了材料中晶格氧的脱附,提高了相结构稳定性.
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