In Situ Stringing of Metal Organic Frameworks by SiC Nanowires for High-Performance Electromagnetic Radiation Elimination,ACS Applied Materials & Interfaces

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In Situ Stringing of Metal Organic Frameworks by SiC Nanowires for High-Performance Electromagnetic Radiation Elimination
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-09-18 00:00:00 , DOI: 10.1021/acsami.7b11592
Kun Zhang ₁ , Fan Wu ₂ , Aming Xie ₂ , Mengxiao Sun ₂ , Wei Dong ₁

Affiliation

The design of novel hybrid nanostructures has been seen as an effective route to tune the properties of materials. Herein, we provide an in situ growth strategy to efficiently construct kebab-like hybrids, which are composed of one-dimensional SiC nanowires stringing polyhedral metal organic frameworks (MOFs). Through a heat-treatment process regardless of under air or argon, these hybrids generate an excellent electromagnetic absorption (EMA) ability. We comprehensively explored the growth and calcination process of these hybrids as well as their EMA enhanced mechanism. The results indicate that the MOFs kept as shrunken polyhedrons under air but decomposed to small particles under argon, due to the different calcination mechanism. In addition, the enhanced EMA ability should be attributed to the combined influences of the reduced dielectric constant, enlarged aspect ratio, and enhanced interface polarization. This research opens up the rational designs and applications of novel materials by the hybridizing of nanomaterials in multidimensions.

中文翻译：

SiC纳米线原位拉丝金属有机骨架，用于高性能电磁辐射消除

新型杂化纳米结构的设计已被视为调节材料性能的有效途径。在这里，我们提供了一种原位生长策略，以有效地构建类似烤肉串的杂种，该杂种由一维SiC纳米线串成多面体金属有机骨架（MOF）组成。通过在空气或氩气下的热处理过程，这些混合动力汽车均具有出色的电磁吸收（EMA）能力。我们全面探讨了这些杂种的生长和煅烧过程，以及它们的EMA增强机制。结果表明，由于不同的煅烧机理，MOF在空气中保持为收缩的多面体，但在氩气中分解为小颗粒。此外，增强的EMA能力应归因于介电常数降低，纵横比增大和界面极化增强的综合影响。这项研究通过纳米材料在多维中的杂交，开辟了新型材料的合理设计和应用。

更新日期：2017-09-18

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