Development of wrinkled reduced graphene oxide wrapped polymer-derived carbon microspheres as viable microwave absorbents via a charge-driven self-assembly strategy

Yang, Wei; Sun, Jiawen; Xu, Wei; He, Zimo; Dong, Yubing; Fu, Yaqin; Zhu, Yaofeng

doi:10.1016/j.jcis.2022.09.144

Cited by 38 publications

(1 citation statement)

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“…Classical single-component EMWA materials generally exhibit finite EMWA performance due to limited loss mechanisms and indisciplinable electromagnetic parameters. Considerable focus has been directed toward the investigation of novel composite materials for EMWA to address this issue. , The composite absorbing material inherits electromagnetic properties, such as dielectricity, conductivity, and magnetism, from its individual components, which can optimize impedance matching and facilitate the dissipation of electromagnetic energy. The incorporation of different materials also introduces a variety of unique microstructures such as heterogeneous interfaces, charge transfer, and lattice defects.…”

Section: Introductionmentioning

confidence: 99%

Drawing Inspiration from Nature: Trinitarian Strategies for Designing Polyoxometalates and Metal–Organic Framework-Based Biomimetic Microhoneycomb Electromagnetic Wave-Absorbing Materials

He,

Ran,

et al. 2024

Inorg. Chem.

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Trinitarian designs in the morphology, components, and microstructure remain challenging for advanced electromagnetic wave absorption (EMWA) materials with light weight, strong absorption, and well-defined structure−function relationships. Herein, a series of X-doped MoS 2 /Cu 9 S 5 with multilevel honeycomb structures (X-MoS 2 /Cu 9 S 5 MHs, X = P, Si, Ge) were designed by space-confined growth and in situ sulfidation of a polyoxometalate-based metal−organic framework. X-MoS 2 /Cu 9 S 5 MHs possess low density, high surface area, and abundant cationcuprum and anion-sulfur double vacancies (V Cu and V S ) simultaneously that are unmatched by conventional EMWA materials. Also, the systematic investigation of the doping effect of various polyoxometalate heteroatoms on V Cu and V S in the microhoneycomb has been conducted. Experimental results and density functional theory calculations reveal that the excellent EMWA performance (−56.21 dB) results from the synergistic effect of morphology design, component optimization, and vacancy regulation. This study not only provides an important opportunity to understand a morphology-component-microstructure strategy in electromagnetic wave absorption but also builds a noteworthy bridge between bioinspired engineering and microscale absorbers.

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Section: Introductionmentioning

confidence: 99%