Flexible but Robust Ti3C2Tx MXene/bamboo Microfibril Composite Paper for High-Performance Wearable Electronics
2021
This work reports a flexible yet robust Ti3C2Tx MXene/bamboo microfibril (BF) composite paper via a simple vacuum filtration process. Due to the excellent compatibility between MXene and BF, the MXene/BF composite paper demonstrates simultaneously an excellent tensile strength of 49.5 MPa higher than that of both MXene sheet and BF film alone and is also among the top value compared with those in the literature, an excellent electrical conductivity as high as 4.8103 S/m and is also higher even at a lower MXene content than those reported in the literature, an outstanding electrical stability with no detectable deterioration after 1000 cyclic stretching, bending and compression. As a result, the MXene/BF composite paper shows a versatility for making various high-performance wearable electronics. Specifically, the as-prepared flexible pressure sensor by stacking exhibits a high sensitivity of 0.153 kPa-1 and a linear sensing performance in the pressure range of 0 to 2.5 kPa; the as-fabricated electric heater displays an outstanding electro-thermal performance, giving a temperature difference of 20 oC in air under the lowest input voltage of 2.5 V compared with those of the literature; the produced wearable symmetric all-solid-state supercapacitor achieves large enhancements in volumetric capacitance and gravimetric capacitance compared with the neat MXene supercapacitor and the outstanding energy storage stability upon varied deformations. The MXene/BF composite paper with the above virtues is appealing for wide applications in multifunctional wearable electronics.
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