Sandwich-Like Fe&TiO(2)@C Nanocomposites Derived from MXene/Fe-MOFs Hybrids for Electromagnetic Absorption.
Sandwich-Like Fe&TiO(2)@C Nanocomposites Derived from MXene/Fe-MOFs Hybrids for Electromagnetic Absorption.
复制标题
三明治状铁
DOI：
10.1007/s40820-020-0398-2
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发表时间：
2020-02-18
影响因子：
26.6
通讯作者：
Lu W
中科院分区：
文献类型：
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作者：
Deng B;Xiang Z;Xiong J;Liu Z;Yu L;Lu W
以MXene和MOFs为杂化材料，成功制备了三明治状层状Fe&TiO2@C纳米复合材料。在厚度仅为1.6 mm的情况下实现了6.5 GHz的宽有效带宽。本文的在线版本（10.1007/s40820-020-0398-2）包含补充材料，可供授权用户使用。电磁污染给人们的生活带来了一系列的问题，人们迫切需要一种轻质、宽吸收带宽的电磁吸波材料。在这项工作中，新颖的类层状2D Fe和TiO 2纳米粒子@C纳米复合材料被合理地设计并成功地从MXene-MOFs杂化物发展。二维碳纳米片夹持Fe和金红石-TiO 2纳米颗粒的形成为电磁波（EMW）吸收提供了强的电磁能量衰减和良好的阻抗匹配。正如预期的那样，纳米复合材料在厚度仅为1.6 mm的情况下实现了6.5 GHz的宽有效吸收带宽，并且在厚度为3 mm的情况下在6.6 GHz下实现了− 51.8 dB的最小反射损耗（RL）值。该工作不仅为具有良好电磁波吸收性能的层状金属和功能纳米颗粒@C纳米复合材料的设计和制备提供了良好的概念，而且为制备各种由MXene前驱体衍生的二维纳米复合材料提供了重要的指导。本文的在线版本（10.1007/s40820-020-0398-2）包含补充材料，可供授权用户使用。
Sandwich-like laminated Fe&TiO2@C nanocomposites were successfully prepared from the MXene–MOFs hybrids. A broad effective bandwidth of 6.5 GHz at a thickness of only 1.6 mm was achieved. The online version of this article (10.1007/s40820-020-0398-2) contains supplementary material, which is available to authorized users. Electromagnetic pollution has been causing a series of problems in people’s life, and electromagnetic absorbers with lightweight and broad absorbing bandwidth properties are widely desired. In this work, novel sandwich-like 2D laminated Fe&TiO2 nanoparticles@C nanocomposites were rationally designed and successfully developed from the MXene–MOFs hybrids. The formation of Fe and rutile-TiO2 nanoparticles sandwiched by the two-dimensional carbon nanosheets provided strong electromagnetic energy attenuation and good impedance matching for electromagnetic wave (EMW) absorption. As expected, the nanocomposites achieved a broad effective absorption bandwidth of 6.5 GHz at a thickness of only 1.6 mm and the minimum reflection loss (RL) value of − 51.8 dB at 6.6 GHz with a thickness of 3 mm. This work not only provides a good design and fabricating concept for the laminated metal and functional nanoparticles@C nanocomposites with good EMW absorption, but also offers an important guideline to fabricate various two-dimensional nanocomposites derived from the MXene precursors. The online version of this article (10.1007/s40820-020-0398-2) contains supplementary material, which is available to authorized users.