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Cobalt-containing doped high-performance oxygen adsorbent
The invention discloses a cobalt-containing perovskite type oxygen adsorbent doped with metal cations. The oxygen adsorbent has a high oxygen non-stoichiometric ratio structure. The chemical formula of the oxygen adsorbent is (A<1-x>A'x)(B<1-y>B'y)O<3-delta>, and delta is a non-stoichiometric ratio, delta is greater than or equal to 0 and less than or equal to 0.5, x is greater than or equal to 0and less than or equal to 0.4, y is greater than or equal to 0 and less than or equal to 0.4, A and A' are at least two of Ba, Ca, Sr and La, and B and B 'are at least two of Co, Fe, Ti and Nb. On thebasis of perovskite type composite metal oxide, target metal elements are selectively doped in A, A ', B and B', the doping proportion and composition type of the metal elements are scientifically controlled, and the stability of the oxygen adsorbent can be improved while the oxygen non-stoichiometric ratio delta is provided. The cobalt-containing high-performance oxygen adsorbent disclosed by the invention has a good practical application effect in the process of high-purity oxygen separation and oxygen enrichment.
一种含钴且金属阳离子掺杂的钙钛矿型氧吸附剂，其具有高度氧非化学计量比结构，其化学式为(AA)(BB)O，其中δ为非化学计量比，0≤δ≤0.5，0≤x≤0.4，0≤y≤0.4，A和A为Ba、Ca、Sr和La中的至少两种，B和B为Co、Fe、Ti和Nb中的至少两种。在钙钛矿型复合金属氧化物的基础上，在A和A、B和B选择性地掺杂目标金属元素，科学控制金属元素的掺杂比例与组成类型，在提供氧非化学计量比δ同时可增加氧吸附剂本身稳定性。本发明的含钴高性能氧吸附剂在用于高纯氧分离和氧富集过程中具有良好的实际应用效果。
Cobalt-containing doped high-performance oxygen adsorbent
The invention discloses a cobalt-containing perovskite type oxygen adsorbent doped with metal cations. The oxygen adsorbent has a high oxygen non-stoichiometric ratio structure. The chemical formula of the oxygen adsorbent is (A<1-x>A'x)(B<1-y>B'y)O<3-delta>, and delta is a non-stoichiometric ratio, delta is greater than or equal to 0 and less than or equal to 0.5, x is greater than or equal to 0and less than or equal to 0.4, y is greater than or equal to 0 and less than or equal to 0.4, A and A' are at least two of Ba, Ca, Sr and La, and B and B 'are at least two of Co, Fe, Ti and Nb. On thebasis of perovskite type composite metal oxide, target metal elements are selectively doped in A, A ', B and B', the doping proportion and composition type of the metal elements are scientifically controlled, and the stability of the oxygen adsorbent can be improved while the oxygen non-stoichiometric ratio delta is provided. The cobalt-containing high-performance oxygen adsorbent disclosed by the invention has a good practical application effect in the process of high-purity oxygen separation and oxygen enrichment.
一种含钴且金属阳离子掺杂的钙钛矿型氧吸附剂，其具有高度氧非化学计量比结构，其化学式为(AA)(BB)O，其中δ为非化学计量比，0≤δ≤0.5，0≤x≤0.4，0≤y≤0.4，A和A为Ba、Ca、Sr和La中的至少两种，B和B为Co、Fe、Ti和Nb中的至少两种。在钙钛矿型复合金属氧化物的基础上，在A和A、B和B选择性地掺杂目标金属元素，科学控制金属元素的掺杂比例与组成类型，在提供氧非化学计量比δ同时可增加氧吸附剂本身稳定性。本发明的含钴高性能氧吸附剂在用于高纯氧分离和氧富集过程中具有良好的实际应用效果。
Cobalt-containing doped high-performance oxygen adsorbent
一种含钴并掺杂的高性能氧吸附剂
LU HUI (Autor:in) / ZHANG QIUPING (Autor:in)
14.07.2020
Patent
Elektronische Ressource
Chinesisch
MANUFACTURING METHOD OF OXYGEN ADSORBENT MOLDED BODY AND OXYGEN ADSORBENT COMPOSITION THEREFOR
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