讨论了Ｌａ２ＮｉＯ４＋δ透氧膜材料的结构特点及氧渗透性能．对Ｌａ２ＮｉＯ４＋δ试样电子衍射谱的分析表明，其结构中由于填隙氧离子的存在及其有序化，出现了超结构现象，并根据此结构对衍射谱进行了指标化，同时探讨了结构特点与透氧机制之间的关系．
The structure and the permeability of La2NiO4+δ oxygen permeating membranes were discussed. TEM studies of La2NiO4+δ show that La2NiO4+δ
contains a large amount of interstitial oxygen and exhibits a superstructure behavior owing to long range ordering of interstitial oxygen. The oxygen permeation
flux through La2NiO4+δ was determined and the relationship between mechanism of oxygen permeability and structure was discussed. The results indicate
that the oxygen transportation by interstitial mechanism is easier than that by vacancy mechanism.
参考文献
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