Large-scale wet-spinning of highly electroconductive MXene fibers

Wonsik Eom, Hwansoo Shin, Rohan B. Ambade, Sang Hoon Lee, Ki Hyun Lee, Dong Jun Kang and Tae Hee Han ()
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Wonsik Eom: Hanyang University
Hwansoo Shin: Hanyang University
Rohan B. Ambade: Hanyang University
Sang Hoon Lee: Hanyang University
Ki Hyun Lee: Hanyang University
Dong Jun Kang: Hanyang University
Tae Hee Han: Hanyang University

Nature Communications, 2020, vol. 11, issue 1, 1-7

Abstract: Abstract Ti3C2Tx MXene is an emerging class of two-dimensional nanomaterials with exceptional electroconductivity and electrochemical properties, and is promising in the manufacturing of multifunctional macroscopic materials and nanomaterials. Herein, we develop a straightforward, continuously controlled, additive/binder-free method to fabricate pure MXene fibers via a large-scale wet-spinning assembly. Our MXene sheets (with an average lateral size of 5.11 μm2) are highly concentrated in water and do not form aggregates or undergo phase separation. Introducing ammonium ions during the coagulation process successfully assembles MXene sheets into flexible, meter-long fibers with very high electrical conductivity (7,713 S cm−1). The fabricated MXene fibers are comprehensively integrated by using them in electrical wires to switch on a light-emitting diode light and transmit electrical signals to earphones to demonstrate their application in electrical devices. Our wet-spinning strategy provides an approach for continuous mass production of MXene fibers for high-performance, next-generation, and wearable electronic devices.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16671-1

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DOI: 10.1038/s41467-020-16671-1

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