Intensifying Electrochemical Activity of Ti₃C₂T_x MXene via Customized Interlayer Structure and Surface Chemistry.

ABSTRACT: MXene, a new intercalation pseudocapacitive electrode material, possesses a high theoretical capacitance for supercapacitor application. However, limited accessible interlayer space and active sites are major challenges to achieve this high capacitance in practical application. In order to stimulate the electrochemical activity of MXene to a greater extent, herein, a method of hydrothermal treatment in NaOH solution with reducing reagent-citric acid is first proposed. After this treatment, the gravimetric capacitance of MXene exhibits a significant enhancement, about 250% of the original value, reaching 543 F g^-1 at 2 mV s^-1. This improved electrochemical performance is attributed to the tailoring of an interlayer structure and surface chemistry state. An expanded and

SUBMITTER: Hu M 

PROVIDER: S-EPMC10421071 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature