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Facile Solution Processing of Stable MXene Dispersions towards Conductive Composite Fibers

Lookup NU author(s): Dr Shayan Seyedin

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

2D transition metal carbides and nitrides called “MXene” are recent exciting additions to the 2D nanomaterials family. The high electrical conductivity, specific capacitance, and hydrophilic nature of MXenes rival many other 2D nanosheets and have made MXenes excellent candidates for diverse applications including energy storage, electromagnetic shielding, water purification, and photocatalysis. However, MXene nanosheets degrade relatively quickly in the presence of water and oxygen, imposing great processing challenges for various applications. Here, a facile solvent exchange (SE) processing route is introduced to produce nonoxidized and highly delaminated Ti3C2Tx MXene dispersions. A wide range of organic solvents including methanol, ethanol, isopropanol, butanol, acetone, dimethylformamide, dimethyl sulfoxide, chloroform, dichloromethane, toluene, and n‐hexane is used. Compared to known processing approaches, the SE approach is straightforward, sonication‐free, and highly versatile as multiple solvent transfers can be carried out in sequence to yield MXene in a wide range of solvents. Conductive MXene polymer composite fibers are achieved by using MXene processed via the solvent exchange (SE) approach, while the traditional redispersion approach has proven ineffective for fiber processing. This study offers a new processing route for the development of novel MXene‐based architectures, devices, and applications.


Publication metadata

Author(s): Seyedin S, Zhang J, Usman KAS, Qin S, Glushenkov AM, Yanza ERS, Jones RT, Razal JM

Publication type: Article

Publication status: Published

Journal: Global Challenges

Year: 2019

Volume: 3

Issue: 10

Print publication date: 01/10/2019

Online publication date: 15/07/2019

Acceptance date: 02/07/2019

Date deposited: 08/07/2020

ISSN (electronic): 2056-6646

Publisher: Wiley

URL: https://doi.org/10.1002/gch2.201900037

DOI: 10.1002/gch2.201900037


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