首页|Direct inkjet printing of flexible MXene/graphene composite films for supercapacitor electrodes

Direct inkjet printing of flexible MXene/graphene composite films for supercapacitor electrodes

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In this paper, flexible MXene/graphene composite electrodes were successfully fabricated by inkjet printing process using printable graphene-modified MXene-based ink. The results show that the interlayer spacing in the printed MXene-based composite films is increased through the insertion of graphene nanosheets, which effectively reduces the self-stacking effect of MXene. The printed MXene/1 wt% graphene composite electrodes exhibit excellent stability with 89% resistance retention at a 180° bending angle, high volumetric capacitance of 183.5 F cm?3 at a scanning speed of 5 mV s?1, and long cycle life with 75% capacitance retention after 3000 charge-discharge cycles. Moreover, a flexible supercapacitor based on those electrodes demonstrates a competitive energy density of 0.53 μWh cm?2 at a power density of 10 μW cm?2, which provides prospects for the design of next generation flexible and wearable energy storage devices.

Flexible film electrodesInkjet printingMXene/grapheneSupercapacitorsTi3C2Tx

Wen D.、Ying G.、Liu L.、Li Y.、Sun C.、Hu C.、Zhao Y.、Ji Z.、Zhang J.、Wang X.

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Department of Materials Science and Engineering College of Mechan ics and Materials Hohai University

Key Laboratory of Superlight Material and Surface Technology Ministry of Education Harbin Engineering University

2022

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN:0925-8388
年,卷(期):2022.900
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