Scalable Manufacturing of Free‐Standing, Strong Ti3C2Tx MXene Films with Outstanding Conductivity

By Jizhen Zhang, Na Kong, Simge Uzun, Ariana Levitt, Shayan Seyedin, P. Lynch, Si Qin, Meikang Han, Wenrong Yang, Jingquan Liu and 3 more. Advances in Materials, 2020

1,004 citations recorded by the source corpus.

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 Ti3C2Tx 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 Ti3C2Tx 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.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/8ae255df8a81bbd278e03c08864f30d99ccdc701

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electronic, Optical and Magnetic Materials

In Materials Chemistry

In Mechanical Engineering

Citations in the corpus

The world of two-dimensional carbides and nitrides (MXenes) (2021, background): “(I) Tensile stress versus strain curves of Ti3C2Tx films with different thickness produced by vacuum-assisted filtration and blade coating (60).”