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Preparation method of oxygen permeable membrane material partially doped with alkali metal ions at site A
The invention belongs to the field of research and development of synthetic high-performance ceramic oxygen permeable membranes, and particularly relates to a preparation method of a ceramic oxygen permeable membrane partially doped with alkali metal ions at a perovskite site A. The preparation method comprises the following specific steps of: (1) taking a strontium ion salt, a cobalt ion salt, aniron ion salt and an alkali metal ion salt as raw materials to form a uniformly mixed aqueous solution A; (2) adding a complexing agent, a dispersing agent and weak base into the mixed solution A, and performing magnetic stirring for several hours until all substances are completely dissolved to form sol B; (3) heating the sol B to gradually evaporate the moisture of the sol B to obtain gel C; (4) performing high-temperature roasting treatment on the gel C to obtain perovskite powder E; and (5) tabletting, roasting and polishing the E to obtain the perovskite ceramic oxygen permeable membranetarget product with the site A partially doped with the alkali metal ions. The method has the advantages of simple equipment, simplified process and low investment cost, and the target product is a perovskite oxygen permeable membrane new material with both stability and oxygen permeation amount.
本发明属合成高性能陶瓷透氧膜研发领域，特别涉及一种在钙钛矿A位部分掺杂碱金属离子的陶瓷透氧膜制备方法，其具体步骤如下：（1）以锶离子盐、钴离子盐、铁离子盐和碱金属离子盐为原料，形成均匀混合水溶液A；（2）向混合溶液A中加入络合剂、分散剂和弱碱，磁力搅拌数小时至所有物质完全溶解，形成溶胶B；（3）对溶胶B进行加热逐步蒸发其水分获得凝胶C；（4）将凝胶C进行高温焙烧处理获得钙钛矿粉体E；（5）将E进行压片、焙烧、打磨即可以即得A位部分掺杂碱金属离子的钙钛矿陶瓷透氧膜目标产物。本发明设备简单，流程简化，投资成本低廉，目标产物为稳定性与透氧量兼具的一类钙钛矿透氧膜新材料。
Preparation method of oxygen permeable membrane material partially doped with alkali metal ions at site A
The invention belongs to the field of research and development of synthetic high-performance ceramic oxygen permeable membranes, and particularly relates to a preparation method of a ceramic oxygen permeable membrane partially doped with alkali metal ions at a perovskite site A. The preparation method comprises the following specific steps of: (1) taking a strontium ion salt, a cobalt ion salt, aniron ion salt and an alkali metal ion salt as raw materials to form a uniformly mixed aqueous solution A; (2) adding a complexing agent, a dispersing agent and weak base into the mixed solution A, and performing magnetic stirring for several hours until all substances are completely dissolved to form sol B; (3) heating the sol B to gradually evaporate the moisture of the sol B to obtain gel C; (4) performing high-temperature roasting treatment on the gel C to obtain perovskite powder E; and (5) tabletting, roasting and polishing the E to obtain the perovskite ceramic oxygen permeable membranetarget product with the site A partially doped with the alkali metal ions. The method has the advantages of simple equipment, simplified process and low investment cost, and the target product is a perovskite oxygen permeable membrane new material with both stability and oxygen permeation amount.
本发明属合成高性能陶瓷透氧膜研发领域，特别涉及一种在钙钛矿A位部分掺杂碱金属离子的陶瓷透氧膜制备方法，其具体步骤如下：（1）以锶离子盐、钴离子盐、铁离子盐和碱金属离子盐为原料，形成均匀混合水溶液A；（2）向混合溶液A中加入络合剂、分散剂和弱碱，磁力搅拌数小时至所有物质完全溶解，形成溶胶B；（3）对溶胶B进行加热逐步蒸发其水分获得凝胶C；（4）将凝胶C进行高温焙烧处理获得钙钛矿粉体E；（5）将E进行压片、焙烧、打磨即可以即得A位部分掺杂碱金属离子的钙钛矿陶瓷透氧膜目标产物。本发明设备简单，流程简化，投资成本低廉，目标产物为稳定性与透氧量兼具的一类钙钛矿透氧膜新材料。
Preparation method of oxygen permeable membrane material partially doped with alkali metal ions at site A
一种A位部分掺杂碱金属离子钙钛矿透氧膜材料的制备方法
ZHAO YIJIE (author) / LI QIMING (author) / LI FANG (author) / DONG YANMEI (author) / CHEN LUYAO (author) / LI JIA (author) / JIANG DONGXUE (author) / LI SHUAI (author) / TAN SONGHAN (author) / YU HAIJIANG (author)
2021-02-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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