Rare-Earth Metal-Organic Framework@Graphene Oxide Composites As High-Efficiency Microwave Absorbents

Zhou Yu; Zhu Liwei; Wang Yanjian; Yu Liangmin; Li Xia

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Rare-Earth Metal-Organic Framework@Graphene Oxide Composites As High-Efficiency Microwave Absorbents

机译：稀土金属 - 有机框架@石墨烯氧化物复合材料作为高效微波吸收剂

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Metal-organic framework (MOF)@graphene oxide (GO) composite material is a material with the advantages of GO and MOF, which can be an effective electromagnetic wave absorber. This study proposes a simple strategy to prepare MOF@GO composite materials to effectively absorb electromagnetic waves by adjusting Er, Sm, and Yb as well as adding GO to form a 3D cuboid structure. The cuboid structure of trimetal MOF@GO shows excellent microwave absorption, with the filler content being as low as 16 wt %. The reflection loss (RLmin) is -49.1 dB, and the corresponding effective absorption bandwidth (RL < -10 dB) reaches 6.72 GHz. Effective electromagnetic wave absorption stems from conduction loss, dipole and interface polarization, multiple EMW scattering, electron spin, and balanced impedance matching.

机译：金属有机骨架（MOF）@氧化石墨烯（GO）复合材料是一种兼具GO和MOF优点的材料，是一种有效的电磁波吸收剂。本研究提出了一个简单的准备策略MOF@GO通过调节Er、Sm和Yb以及添加GO来形成3D长方体结构，从而有效吸收电磁波的复合材料。三方铝的长方体结构MOF@GO具有优异的微波吸收性能，填料含量低至16 wt%。反射损耗（RLmin）为-49.1db，相应的有效吸收带宽（RL<-10db）达到6.72ghz。有效的电磁波吸收源于传导损耗、偶极子和界面极化、多次EMW散射、电子自旋和平衡阻抗匹配。

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来源
《Crystal growth & design》 |2021年第5期|共12页
作者
Zhou Yu; Zhu Liwei; Wang Yanjian; Yu Liangmin; Li Xia;
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Ocean Univ China Frontiers Sci Ctr Deep Ocean Multispheres &

Earth Qingdao 266100 Peoples R China;

Ocean Univ China Frontiers Sci Ctr Deep Ocean Multispheres &

Earth Qingdao 266100 Peoples R China;

Ocean Univ China Frontiers Sci Ctr Deep Ocean Multispheres &

Earth Qingdao 266100 Peoples R China;

Ocean Univ China Frontiers Sci Ctr Deep Ocean Multispheres &

Earth Qingdao 266100 Peoples R China;

Ocean Univ China Frontiers Sci Ctr Deep Ocean Multispheres &

Earth Qingdao 266100 Peoples R China;

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正文语种 eng
中图分类晶体学;
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Rare-Earth Metal-Organic Framework@Graphene Oxide Composites As High-Efficiency Microwave Absorbents

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