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Scalable manufacturing of leaf‐like MXene/Ag NWs/cellulose composite paper electrode for all‐solid‐state supercapacitor
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Scalable manufacturing of leaf‐like MXene/Ag NWs/cellulose composite paper electrode for all‐solid‐state supercapacitor
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Scalable manufacturing of leaf‐like MXene/Ag NWs/cellulose composite paper electrode for all‐solid‐state supercapacitor
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Journal Article
Scalable manufacturing of leaf‐like MXene/Ag NWs/cellulose composite paper electrode for all‐solid‐state supercapacitor
2022
Overview
Freestanding films with high strength and conductivity are critical for flexible electronics, such as supercapacitors. Herein, inspired from the natural leaf, a freestanding paper is constructed through fast vacuum filtration by “mesophylls‐like” MXene (Ti3C2TX) nanosheets and “vein‐like” cellulose filaments and silver nanowires (Ag NWs). The produced nanocomposite paper with 25 wt% Ti3C2TX and 8 wt% Ag NWs (PMxAg25‐8) exhibits high conductivity (58 843 S m−1) and excellent mechanical properties (Tensile strength of 34 MPa and Young's modulus of 6 GPa), which arises from the synergistic effects of the interactions between cellulose and MXene and the three‐dimensional interpenetrating frameworks. This interpenetrating framework can further benefit the electrochemical performance of the nanocomposite papers and the foldable paper electrode presents a high capacitance of 505 F g−1 with only 25 wt% MXene. This work paves the way for the fast fabrication of strong and multifunctional MXene macro‐assembly for flexible electronics by conventional papermaking process. The freestanding paper composed of “mesophylls‐like” MXene nanosheets and “vein‐like” cellulose filaments and silver nanowires has been constructed by the traditional papermaking process. The resulted paper electrode exhibits good mechanical properties, high conductivity and excellent electrochemical performance with fast ion/charge transport channel, showing big potential in flexible electronics.
