Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method and application of MOF-derived A-site doped ABO3 type perovskite material
The invention discloses a preparation method and application of an MOF-derived A-site doped ABO3 type perovskite material, and relates to a preparation method and application of an ABO3 type perovskite material. The invention aims to solve the problems that the preparation method of the A-site doped ABO3 type perovskite material prepared by the existing method is single and the wave-absorbing effect is poor when the A-site doped ABO3 type perovskite material is used as a wave-absorbing material. Different from a traditional preparation method of sol-gel and then high-temperature calcination, the perovskite material is obtained by controlling the hydrolysis process of the MOF matrix and then performing high-temperature calcination, and the perovskite material is used as a wave-absorbing material to be applied to the field of electromagnetic wave absorption. When the MOF-derived A-site doped ABO3 type perovskite material prepared by the invention is used as a wave-absorbing material, a reflection loss value of-62.6 dB is obtained at 11GHz, and the thickness of the material is only 2.08 mm at the moment. When the thickness of the material is 5 mm, the absorption frequency band can be as low as 4 GHz, and the material can have a reflection loss value of-34 dB.
MOF衍生A位掺杂的ABO3型钙钛矿材料的制备方法和应用，它涉及ABO3型钙钛矿材料的制备方法和应用。本发明的目的是要解决现有方法制备的A位掺杂的ABO3型钙钛矿材料的制备方法单一，作为吸波材料使用时，吸波效果差的问题。不同于传统的溶胶‑凝胶而后高温煅烧的制备方法，本发明通过控制MOF基体水解过程，而后经高温煅烧，获得钙钛矿材料，并将其作为吸波材料应用于电磁波吸收领域。本发明制备的MOF衍生A位掺杂的ABO3型钙钛矿材料作为吸波材料使用时，在11GHz处获得‑62.6dB的反射损耗值，此时材料厚度仅为2.08mm。而当材料厚度为5mm时，其吸收频带可低至4GHz，可具有‑34dB的反射损耗值。
Preparation method and application of MOF-derived A-site doped ABO3 type perovskite material
The invention discloses a preparation method and application of an MOF-derived A-site doped ABO3 type perovskite material, and relates to a preparation method and application of an ABO3 type perovskite material. The invention aims to solve the problems that the preparation method of the A-site doped ABO3 type perovskite material prepared by the existing method is single and the wave-absorbing effect is poor when the A-site doped ABO3 type perovskite material is used as a wave-absorbing material. Different from a traditional preparation method of sol-gel and then high-temperature calcination, the perovskite material is obtained by controlling the hydrolysis process of the MOF matrix and then performing high-temperature calcination, and the perovskite material is used as a wave-absorbing material to be applied to the field of electromagnetic wave absorption. When the MOF-derived A-site doped ABO3 type perovskite material prepared by the invention is used as a wave-absorbing material, a reflection loss value of-62.6 dB is obtained at 11GHz, and the thickness of the material is only 2.08 mm at the moment. When the thickness of the material is 5 mm, the absorption frequency band can be as low as 4 GHz, and the material can have a reflection loss value of-34 dB.
MOF衍生A位掺杂的ABO3型钙钛矿材料的制备方法和应用，它涉及ABO3型钙钛矿材料的制备方法和应用。本发明的目的是要解决现有方法制备的A位掺杂的ABO3型钙钛矿材料的制备方法单一，作为吸波材料使用时，吸波效果差的问题。不同于传统的溶胶‑凝胶而后高温煅烧的制备方法，本发明通过控制MOF基体水解过程，而后经高温煅烧，获得钙钛矿材料，并将其作为吸波材料应用于电磁波吸收领域。本发明制备的MOF衍生A位掺杂的ABO3型钙钛矿材料作为吸波材料使用时，在11GHz处获得‑62.6dB的反射损耗值，此时材料厚度仅为2.08mm。而当材料厚度为5mm时，其吸收频带可低至4GHz，可具有‑34dB的反射损耗值。
Preparation method and application of MOF-derived A-site doped ABO3 type perovskite material
MOF衍生A位掺杂的ABO3型钙钛矿材料的制备方法和应用
WU GUOHUA (Autor:in) / WU YUFEI (Autor:in) / RONG XIANHUI (Autor:in) / ZHANG XUYANG (Autor:in) / ZHAO KUNMING (Autor:in) / ZHU CHANGKUAN (Autor:in) / ZHAO XUEYING (Autor:in)
23.02.2024
Patent
Elektronische Ressource
Chinesisch
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