Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

The harm of electromagnetic wave to human daily life has gradually received widespread attention, and CuS, with unique morphology and high specific surface area and CuS as a typical P?type semiconductor material, has a large number of holes in its structure, which is conducive to electron transport, have used as electromagnetic wave absorption (EMA) materials to solve the issue. EMA properties are affected by the morphology of materials, therefore, we prepared flower shaped CuS/RGO formed by self?assembly of 2D lamellar structure CuS and RGO via a simple water bath heating reaction to enhance the interface polarization and multiple scattering of electromagnetic waves. The content of RGO was adjusted to obtain the superior EMA properties. The results showed that the synthesized CuS/RGO with RGO of 10 mg had an excellent EMA capacity of strong reflection loss (RLmin = ?46.8 dB) and broad effective absorption bandwidth (EAB = 4.9 GHz), at the thickness of 2.04 mm and the frequency of 12.1 GHz. The prepared flower shaped CuS/RGO composites had a strong interface polarization because of its 2D/2D heterostructure, and the unique structure of the sample also applied a plenty of active sites to increase the scattering and reflection of the electromagnetic wave, and the the 2D CuS was compounded with 2D RGO to form 3D conductive networks improving conductive loss capacity. This article enriches the study on the influence of the morphology of transition metal sulfides?based composites on their electromagnetic wave absorption field.This article is protected by copyright. All rights reserved.

» Author: Qixian Zhao, Xianyu Li, Dongjie Jia, Bochao Ma, Peipei Yang

» Publication Date: 06/08/2023

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