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Related Concept Videos

  • Engineering
  • Materials Engineering
  • Wearable Materials
  • Direct Ink Writing Of Low-concentration Mxene/aramid Nanofiber Inks For Tunable Electromagnetic Shielding And Infrared Anticounterfeiting Applications.
  • Engineering
  • Materials Engineering
  • Wearable Materials
  • Direct Ink Writing Of Low-concentration Mxene/aramid Nanofiber Inks For Tunable Electromagnetic Shielding And Infrared Anticounterfeiting Applications.

    • Related Experiment Video

    Planar and Three-Dimensional Printing of Conductive Inks
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    Direct Ink Writing of Low-Concentration MXene/Aramid Nanofiber Inks for Tunable Electromagnetic Shielding and Infrared Anticounterfeiting Applications.

    Shaohui Peng1,2, Chenxu Liu1,2, Junhui Tan1,2

    • 1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China.

    ACS Applied Materials & Interfaces
    |May 2, 2024

    View abstract on PubMed

    Summary
    This summary is machine-generated.

    High-viscosity aramid nanofibers (ANFs) enable low-concentration MXene inks for printable electronics. This innovation enhances conductivity, electromagnetic interference shielding, and infrared anticounterfeiting, while ensuring flexibility and stability.

    Keywords:
    MXene/ANF inkdirect ink writingelectromagnetic interferenceenvironmental stabilityinfrared anti-counterfeiting

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    Area of Science:

    • Materials Science
    • Nanotechnology
    • Electronics Engineering

    Background:

    • MXene inks are promising for printed electronics but face challenges in balancing low solid content, printability, and mechanical/environmental stability.
    • Achieving high performance in printed electronics requires optimized ink formulations that address these limitations.

    Purpose of the Study:

    • To develop highly conductive and stable MXene-based inks for scalable printed electronics.
    • To overcome the limitations of traditional MXene inks by enhancing rheological properties and performance characteristics.

    Main Methods:

    • Utilized high-viscosity aramid nanofibers (ANFs) to optimize the rheology of low-concentration MXene inks.
    • Investigated the formation of entangled networks and hydrogen bonds between MXene and ANF to enhance viscosity and yield stress.
    • Employed direct ink writing for fabricating customized structures using the optimized MXene/ANF (MA) inks.

    Main Results:

    • Achieved MXene/ANF inks with high conductivity (883.5 S/cm) and tunable electromagnetic interference shielding effectiveness (0.2–48.2 dB).
    • Demonstrated adjustable infrared (IR) emissivity for anticounterfeiting applications by varying ANF ratio and printing design.
    • Developed printed objects with outstanding mechanical flexibility and environmental stability due to ANF reinforcement.

    Conclusions:

    • Aramid nanofibers effectively enhance MXene ink rheology, enabling low-concentration, high-performance printable electronics.
    • The developed MXene/ANF inks offer versatile solutions for customizable, scalable, and cost-effective production of flexible printed electronics.
    • This work presents a significant advancement in materials for advanced electronic applications, including shielding and anticounterfeiting.