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Nano Research 2024, 17(3): 1676-1686 https://doi.org/10.1007/s12274-023-6198-5
Research Article | Open Access | Issue | Published: 03 November 2023

Enhanced electromagnetic wave absorption via optical fiber-like PMMA@Ti3C2Tx@SiO2 composites with improved impedance matching

Show Author's Information Huanhuan Niu1,2,  Xuewen Jiang1,  Wei Li3( ),  Zhiyu Min4,  Budi Riza Putra5,  Wulan Tri Wahyuni6,  Hailong Wang1,  Rui Zhang1,4,  Bingbing Fan1( )
School of Material Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
Department of Materials and Earth Sciences, Technical University of Darmstadt, Darmstadt 64287, Germany
School of Material Science and Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
Research Center for Metallurgy, National Research and Innovation Agency (BRIN), PUSPIPTEK Gd. 470, South Tangerang, Banten 15315, Indonesia
Analytical Chemistry Division, Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, West Java 16680, Indonesia
Keywords:
SiO2 layer, impedance match, optical fiber-like structure, polymethyl methacrylate (PMMA)@Ti3C2Tx@SiO2 composites, interfacial polarization and dipolar polarization.
Topics:
Nanostructured materials
Cite this article:
Niu H, Jiang X, Li W, et al. Enhanced electromagnetic wave absorption via optical fiber-like PMMA@Ti3C2Tx@SiO2 composites with improved impedance matching. Nano Research, 2024, 17(3): 1676-1686. https://doi.org/10.1007/s12274-023-6198-5
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Abstract Full text About this article

Ti3C2Tx nanosheets have attracted significant attention for their potential in electromagnetic wave absorption (EWA). However, their inherent self-stacking and exorbitant electrical conductivity inevitably lead to serious impedance mismatch, restricting their EWA application. Therefore, the optimization of impedance matching becomes crucial. In this work, we developed polymethyl methacrylate (PMMA)@Ti3C2Tx@SiO2 composites with a sandwich-like core–shell structure by coating SiO2 on PMMA@Ti3C2Tx. The results demonstrate that the superiority of the SiO2 layer in combination with PMMA@Ti3C2Tx, outperforming other relative graded distribution structures and meeting the requirements of EWA equipment. The resulting PMMA@Ti3C2Tx@SiO2 composites achieved a minimum reflection loss of −58.08 dB with a thickness of 1.9 mm, and an effective absorption bandwidth of 2.88 GHz. Mechanism analysis revealed that the structural design of SiO2 layer not only optimized impedance matching, but also synergistically enhanced multiple loss mechanisms such as interfacial polarization and dipolar polarization. Therefore, this work provides valuable insights for the future preparation of high-performance electromagnetic wave absorbing Ti3C2Tx-based composites.


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About this article

Enhanced electromagnetic wave absorption via optical fiber-like PMMA@Ti3C2Tx@SiO2 composites with improved impedance matching

Show Author's information Huanhuan Niu1,2, Xuewen Jiang1, Wei Li3( ), Zhiyu Min4, Budi Riza Putra5, Wulan Tri Wahyuni6, Hailong Wang1, Rui Zhang1,4, Bingbing Fan1( )
School of Material Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
Department of Materials and Earth Sciences, Technical University of Darmstadt, Darmstadt 64287, Germany
School of Material Science and Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
Research Center for Metallurgy, National Research and Innovation Agency (BRIN), PUSPIPTEK Gd. 470, South Tangerang, Banten 15315, Indonesia
Analytical Chemistry Division, Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, West Java 16680, Indonesia

Abstract

Ti3C2Tx nanosheets have attracted significant attention for their potential in electromagnetic wave absorption (EWA). However, their inherent self-stacking and exorbitant electrical conductivity inevitably lead to serious impedance mismatch, restricting their EWA application. Therefore, the optimization of impedance matching becomes crucial. In this work, we developed polymethyl methacrylate (PMMA)@Ti3C2Tx@SiO2 composites with a sandwich-like core–shell structure by coating SiO2 on PMMA@Ti3C2Tx. The results demonstrate that the superiority of the SiO2 layer in combination with PMMA@Ti3C2Tx, outperforming other relative graded distribution structures and meeting the requirements of EWA equipment. The resulting PMMA@Ti3C2Tx@SiO2 composites achieved a minimum reflection loss of −58.08 dB with a thickness of 1.9 mm, and an effective absorption bandwidth of 2.88 GHz. Mechanism analysis revealed that the structural design of SiO2 layer not only optimized impedance matching, but also synergistically enhanced multiple loss mechanisms such as interfacial polarization and dipolar polarization. Therefore, this work provides valuable insights for the future preparation of high-performance electromagnetic wave absorbing Ti3C2Tx-based composites.

Keywords: SiO2 layer, impedance match, optical fiber-like structure, polymethyl methacrylate (PMMA)@Ti3C2Tx@SiO2 composites, interfacial polarization and dipolar polarization.

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Publication history
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Publication history

Received: 24 August 2023
Revised: 10 September 2023
Accepted: 12 September 2023
Published: 03 November 2023
Issue date: March 2024

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© The author(s) 2023

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. U2004177), Henan Province Key Research Project for Higher Education Institutions (No. 23B430017), the Outstanding Youth Fund of Henan Province (No. 212300410081), and the Science and Technology Innovation Talents in Universities of Henan Province (No. 22HASTIT001). B. B. F. also acknowledged the financial support from the Research and Entrepreneurship Start-up Projects for Overseas Returned Talents.

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