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Scalable Manufacturing of Free-Standing, Strong Ti3 C2 Tx MXene Films with Outstanding Conductivity.

Author information

Affiliations

  • 1. Institute for Frontier Materials, Deakin University, Geelong, Victoria, 3216, Australia.
      Authors
    • Zhang J 1
    • Seyedin S 1
    • Lynch PA 1
    • Qin S 1
    • Wang X 1
    • Razal JM 1
    (6 authors)
  • 2. School of Life and Environmental Sciences, Deakin University, Geelong, Victoria, 3216, Australia.
      Authors
    • Kong N 2
    • Yang W 2
    (2 authors)
  • 3. A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA.
      Authors
    • Uzun S 3
    • Levitt A 3
    • Han M 3
    • Gogotsi Y 3
    (4 authors)
  • 4. College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, China.
      Authors
    • Liu J 4
    (1 author)

ORCIDs linked to this article

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Advanced Materials (Deerfield Beach, Fla.), 20 Apr 2020, 32(23):e2001093
https://doi.org/10.1002/adma.202001093 PMID: 32309891 

Abstract 

Free-standing films that display high strength and high electrical conductivity are critical for flexible electronics, such as electromagnetic interference (EMI) shielding coatings and current collectors for batteries and supercapacitors. 2D Ti3 C2 Tx flakes are ideal candidates for making conductive films due to their high strength and metallic conductivity. It is, however, challenging to transfer those outstanding properties of single MXene flakes to macroscale films as a result of the small flake size and relatively poor flake alignment that occurs during solution-based processing. Here, a scalable method is shown for the fabrication of strong and highly conducting pure MXene films containing highly aligned large MXene flakes. These films demonstrate record tensile strength up to ≈570 MPa for a 940 nm thick film and electrical conductivity of ≈15 100 S cm-1 for a 214 nm thick film, which are both the highest values compared to previously reported pure Ti3 C2 Tx films. These films also exhibit outstanding EMI shielding performance (≈50 dB for a 940 nm thick film) that exceeds other synthetic materials with comparable thickness. MXene films with aligned flakes provide an effective route for producing large-area, high-strength, and high-electrical-conductivity MXene-based films for future electronic applications.

Full text links 

Read article at publisher's site: https://doi.org/10.1002/adma.202001093

Read article for free, from open access legal sources, via Unpaywall: https://dro.deakin.edu.au/ndownloader/files/36923608Unpaywall

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Funding 

Funders who supported this work.

Australian Research Council (3)

Deakin University

    U.S. National Science Foundation Graduate Research Fellowship (1)