Micro‐Structural and Flexible Reduced Graphene Oxide/Ti 3 C 2 T x Composite Film Electrode with Long Cycle Life for Supercapacitor

Poor rate capability due to the sheet self‐stacking of conventional MXene electrode limits their electrochemical application to some extent. Herein, incorporating reduced graphene oxide into Ti 3 C 2 T x MXene is reported to improve the electrochemical performance, cycle lifetime, and mechanical fle...

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Veröffentlicht in:Advanced materials interfaces 2022-01, Vol.9 (2)
Hauptverfasser: Luo, Yijia, Yin, Xingtian, Luo, Yangyang, Xie, Haixia, Bin, Xiaoqing, Tian, Yapeng, Ju, Maomao, Que, Wenxiu
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container_issue 2
container_start_page
container_title Advanced materials interfaces
container_volume 9
creator Luo, Yijia
Yin, Xingtian
Luo, Yangyang
Xie, Haixia
Bin, Xiaoqing
Tian, Yapeng
Ju, Maomao
Que, Wenxiu
description Poor rate capability due to the sheet self‐stacking of conventional MXene electrode limits their electrochemical application to some extent. Herein, incorporating reduced graphene oxide into Ti 3 C 2 T x MXene is reported to improve the electrochemical performance, cycle lifetime, and mechanical flexibility significantly. Graphene oxide is reduced by thermal heating, by which it can release gas locally to induce micro‐surface structure. The resulting film with an introduction of 20 wt% graphene oxide exhibits an expansion of the interlayer space to multiply the active sites and thereby lead to a specific capacitance of up to 322 F g −1 at 1 A g −1 in 3 m H 2 SO 4 electrolyte. In addition, the fabricated composite electrode also exhibits an excellent cycle stability and mechanical flexibility even after 32 000 charge/discharge cycles. This work provides a progressive strategy to synthesize micro‐structural and flexible MXene‐based electrode for the future application in flexible energy storage devices.
doi_str_mv 10.1002/admi.202101619
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