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All electronic devices are susceptible to electromagnetic interference (EMI) phenomena, and EMI shieldingEMI shielding is necessary to mitigate this issue and ensure the safety and efficiency of electronic components. In this research work, we validated the hypothesis that the integration of two-dimensional (2D) materials of MXeneMxene and aligned cobalt nanowiresCobalt nanowires (CoNWs) into CNT buckypapers significantly enhances their electromagnetic interference shielding effectiveness (SE). The Ti3C2Tx MXeneMxene/CNT buckypaper displayed an impressive EMI SE of 94.2 dB. The EMI SE is maintained consistently across the tested frequency range of 8.4–12.0 GHz. Furthermore, Ti3C2Tx MXeneMxene/CoNW/CNT buckypaper, incorporating a three-layered composite structure, showed an even more remarkable EMI SE of 137.4 dB. Such 2D layers of MXeneMxene with aligned CoNWs not only contribute to the physical robustness of the buckypaper but also introduce magnetic losses, which are instrumental in absorbing and thus shielding against electromagnetic waves.

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Flexible Nanocomposite Films Based on Carbon Nanotubes/MXene/Cobalt Nanowires for Enhanced EMI Shielding Applications

  • 会议论文

  • 发表日期：

    2025年

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  • Daniel Choi,
  • Syed Sajl

摘要

All electronic devices are susceptible to electromagnetic interference (EMI) phenomena, and EMI shieldingEMI shielding is necessary to mitigate this issue and ensure the safety and efficiency of electronic components. In this research work, we validated the hypothesis that the integration of two-dimensional (2D) materials of MXeneMxene and aligned cobalt nanowiresCobalt nanowires (CoNWs) into CNT buckypapers significantly enhances their electromagnetic interference shielding effectiveness (SE). The Ti3C2Tx MXeneMxene/CNT buckypaper displayed an impressive EMI SE of 94.2 dB. The EMI SE is maintained consistently across the tested frequency range of 8.4–12.0 GHz. Furthermore, Ti3C2Tx MXeneMxene/CoNW/CNT buckypaper, incorporating a three-layered composite structure, showed an even more remarkable EMI SE of 137.4 dB. Such 2D layers of MXeneMxene with aligned CoNWs not only contribute to the physical robustness of the buckypaper but also introduce magnetic losses, which are instrumental in absorbing and thus shielding against electromagnetic waves.