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In order to prevent the microwave leakage and mutual interference, more and more microwave absorbing devices are added into the design of electronic products to ensure its routine operation. In this work, we have successfully prepared MoS2/TiO2/Ti3C2Tx hierarchical composites by one-pot hydrothermal method and focused on the relationship between structures and electromagnetic absorbing properties. Supported by comprehensive characterizations, MoS2 nanosheets were proved to be anchored on the surface and interlayer of Ti3C2Tx through a hydrothermal process. Additionally, TiO2 nanoparticles were obtained in situ. Due to these hierarchical structures, the MoS2/TiO2/Ti3C2Tx composites showed greatly enhanced microwave absorbing performance. The MoS2/TiO2/Ti3C2Tx composites exhibit a maximum reflection loss value of -33.5 dB at 10.24 GHz and the effective absorption bandwidth covers 3.1 GHz (13.9-17 GHz) at the thickness of 1.0 mm, implying the features of wide frequency and light weight. This work in the hierarchical structure of MoS2/TiO2/Ti3C2Tx composites opens a promising door to the exploration of constructing extraordinary electromagnetic wave absorbents.


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Novel hierarchical structure of MoS2/TiO2/Ti3C2Tx composites for dramatically enhanced electromagnetic absorbing properties

Show Author's information Heng DUa,bQipeng ZHANGaBiao ZHAOcFrank MARKENdQiancheng GAOcHongxia LUaLi GUANcHailong WANGcGang SHAOcHongliang XUcRui ZHANGa,eBingbing FANa( )
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu 241000, China
Henan Key Laboratory of Aeronautical Materials and Application Technology, Zhengzhou University of Aeronautics, Zhengzhou 450046, China
Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
School of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China

† Heng Du and Qipeng Zhang contributed equally to this work.

Abstract

In order to prevent the microwave leakage and mutual interference, more and more microwave absorbing devices are added into the design of electronic products to ensure its routine operation. In this work, we have successfully prepared MoS2/TiO2/Ti3C2Tx hierarchical composites by one-pot hydrothermal method and focused on the relationship between structures and electromagnetic absorbing properties. Supported by comprehensive characterizations, MoS2 nanosheets were proved to be anchored on the surface and interlayer of Ti3C2Tx through a hydrothermal process. Additionally, TiO2 nanoparticles were obtained in situ. Due to these hierarchical structures, the MoS2/TiO2/Ti3C2Tx composites showed greatly enhanced microwave absorbing performance. The MoS2/TiO2/Ti3C2Tx composites exhibit a maximum reflection loss value of -33.5 dB at 10.24 GHz and the effective absorption bandwidth covers 3.1 GHz (13.9-17 GHz) at the thickness of 1.0 mm, implying the features of wide frequency and light weight. This work in the hierarchical structure of MoS2/TiO2/Ti3C2Tx composites opens a promising door to the exploration of constructing extraordinary electromagnetic wave absorbents.

Keywords:

MoS2/TiO2/Ti3C2Tx hierarchical hybrids, microwave absorbing properties, dielectric loss
Received: 26 January 2021 Revised: 17 April 2021 Accepted: 17 April 2021 Published: 16 September 2021 Issue date: October 2021
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Publication history
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Publication history

Received: 26 January 2021
Revised: 17 April 2021
Accepted: 17 April 2021
Published: 16 September 2021
Issue date: October 2021

Copyright

© The Author(s) 2021

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (No. U2004177), Outstanding Youth Fund of Henan Province (No. 212300410081), and Natural Science Research Project of Henan Educational Committee (No. 20A43001).

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