Cytomembrane-Inspired MXene Ink with Amphiphilic Surfactant for 3D Printed Microsupercapacitors

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Shi, Ge
Zhu, Yuxuan
Batmunkh, Munkhbayar
Ingram, Malaika
Huang, Yongfa
Chen, Zehong
Wei, Yujia
Zhong, Linxin
Peng, Xinwen
Zhong, Yu Lin
Griffith University Author(s)
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2022
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Abstract

Two-dimensional (2D) material-based hydrogels have been widely utilized as the ink for extrusion-based 3D printing in various electronics. However, the viscosity of the hydrogel ink is not high enough to maintain the self-supported structure without architectural deformation. It is also difficult to tune the microstructure of the printed devices using a low-viscosity hydrogel ink. Herein, by mimicking a phospholipid bilayer in a cytomembrane, the amphiphilic surfactant nonaethylene glycol monododecyl ether (C12E9) was incorporated into MXene hydrogel. The incorporation of C12E9 offers amphiphilicity to the MXene flakes and produces a 3D interlinked network of the MXene flakes. The 3D interlinked network offers a high-viscosity, homogenized flake distribution and enhanced printability to the ink. This ink facilitates the alignment of the MXene flakes during extrusion as well as the formation of the aligned micro-and sub-microsized porous structures, leading to the improved electrochemical performance of the printed microsupercapacitor. This study provides an example for the preparation of microelectronics with tunable microstructures.

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ACS Nano

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16

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9

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Electrochemical energy storage and conversion

Additive manufacturing

Wearable materials

Inorganic materials (incl. nanomaterials)

Composite and hybrid materials

Science & Technology

Physical Sciences

Technology

Chemistry, Multidisciplinary

Chemistry, Physical

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Shi, G; Zhu, Y; Batmunkh, M; Ingram, M; Huang, Y; Chen, Z; Wei, Y; Zhong, L; Peng, X; Zhong, YL, Cytomembrane-Inspired MXene Ink with Amphiphilic Surfactant for 3D Printed Microsupercapacitors, ACS Nano, 2022, 16 (9), pp. 14723-14736

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