Fast assembly of MXene hydrogels by interfacial electrostatic interaction for supercapacitors
2021
Peng, Mengke | Yang, Weizu | Li, Longbin | Zhang, Kaiyang | Wang, Li | Hu, Ding | Yuan, Kai | Chen, Yiwang
A simple and fast method for preparing MXene hydrogels is proposed by introducing protonated thionine molecules into a MXene dispersion through electrostatic interaction. Such a 3D hydrogel effectively suppressed restacking and oxidation, and enlarged the surface utilization of the MXene, producing an improved specific capacitance of 163 F g⁻¹ at 1 A g⁻¹ and excellent stability when used as an electrode material for supercapacitors.
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