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Polyoxometalates 2022, 1(2): 9140008 https://doi.org/10.26599/POM.2022.9140008
Research Article | Open Access | Issue | Published: 01 November 2022

Old molybdenum blue for new application: {Mo72X30}/PANI/MWCNTs (X = Fe, V) ternary coaxial cable-like fibers for superior electromagnetic wave absorption

Show Author's Information Peng He1,2,3,  Ling Ran1,2,  Rui Huang1,4,  Ruiting Hu1,4,  Runze Ma1,4,  Yani Li1,2,3,  Youcai Liang1,2,  Jun Yan1,2,3,4 ( )
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Chemical Power Sources, Central South University, Changsha 410083, China
Keywords:
electromagnetic wave absorption, heterointerface, molybdenum blue, coaxial cable-like fibers
Cite this article:
He P, Ran L, Huang R, et al. Old molybdenum blue for new application: {Mo72X30}/PANI/MWCNTs (X = Fe, V) ternary coaxial cable-like fibers for superior electromagnetic wave absorption. Polyoxometalates, 2022, 1(2): 9140008. https://doi.org/10.26599/POM.2022.9140008
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Abstract Full text Electronic supplementary material About this article

The systematic design of heterointerfaces has been a topic of considerable attention in electromagnetic absorption applications. For the first time, molybdenum blue/polyaniline/multiwalled carbon nanotubes ({Mo72X30}/PANI/MWCNTs, X = Fe, V) ternary coaxial cable-like fibers are systematically designed and synthesized via host–guest electrostatic and synergistic effect and employed as exceptional electromagnetic wave absorbers. The coaxial cable-like structure features an abundance of heterointerfaces between layers, which improves dipole polarization and interface polarization effect, and regulates conductive loss. In addition, the inclusion of polyoxometalates boosts magnetic losses dominated by eddy current losses and improves impedance matching. The optimal {Mo72V30}/PANI/MWCNTs exhibit higher electromagnetic wave absorption (−48.12 dB) at a thinner thickness (2.3 mm). At a thickness of 2.5 mm, {Mo72Fe30}/PANI/MWCNTs exhibit the maximum effective absorption bandwidth (6.16 GHz). In addition to expanding our understanding of the effect of heterointerfaces on electromagnetic absorption, this study demonstrates the potential utilization of polyoxometalate functional molecules in the electromagnetic wave absorption field.


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About this article

Old molybdenum blue for new application: {Mo72X30}/PANI/MWCNTs (X = Fe, V) ternary coaxial cable-like fibers for superior electromagnetic wave absorption

Show Author's information Peng He1,2,3, Ling Ran1,2, Rui Huang1,4, Ruiting Hu1,4, Runze Ma1,4, Yani Li1,2,3, Youcai Liang1,2, Jun Yan1,2,3,4 ( )
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Chemical Power Sources, Central South University, Changsha 410083, China

Abstract

The systematic design of heterointerfaces has been a topic of considerable attention in electromagnetic absorption applications. For the first time, molybdenum blue/polyaniline/multiwalled carbon nanotubes ({Mo72X30}/PANI/MWCNTs, X = Fe, V) ternary coaxial cable-like fibers are systematically designed and synthesized via host–guest electrostatic and synergistic effect and employed as exceptional electromagnetic wave absorbers. The coaxial cable-like structure features an abundance of heterointerfaces between layers, which improves dipole polarization and interface polarization effect, and regulates conductive loss. In addition, the inclusion of polyoxometalates boosts magnetic losses dominated by eddy current losses and improves impedance matching. The optimal {Mo72V30}/PANI/MWCNTs exhibit higher electromagnetic wave absorption (−48.12 dB) at a thinner thickness (2.3 mm). At a thickness of 2.5 mm, {Mo72Fe30}/PANI/MWCNTs exhibit the maximum effective absorption bandwidth (6.16 GHz). In addition to expanding our understanding of the effect of heterointerfaces on electromagnetic absorption, this study demonstrates the potential utilization of polyoxometalate functional molecules in the electromagnetic wave absorption field.

Keywords: electromagnetic wave absorption, heterointerface, molybdenum blue, coaxial cable-like fibers

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Received: 26 July 2022
Revised: 31 August 2022
Accepted: 25 September 2022
Published: 01 November 2022
Issue date: December 2022

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© The Author(s) 2022. Polyoxometalates published by Tsinghua University Press.

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