Enhancing Supercapacitor Performance: Synergistic 1T/2H-MoS₂@Ti₃C₂T_x Hybrid as an Efficient Electrode Material for Asymmetric Supercapacitor Applications

The development of high-performance electrode materials with superior energy storage capabilities is crucial for next-generation supercapacitors. In this study, we present the synthesis of 1T/2H-MoS 2 @Ti 3 C 2 T x hybrid nanostructures that synergistically combine the high electrical conductivity of Ti 3 C 2 T x MXene and the redox-active characteristics of 1T/2H-MoS 2 . The hybrid material exhibits excellent electrochemical performance, delivering a specific capacitance of 1162.22 F g –1 at 1 A g –1 and retaining 80% of its capacitance after extended cycling, indicating excellent stability. The assembled asymmetric supercapacitor (ASC) operates across a wide potential window of 1.6 V in a 2 M KOH electrolyte, achieving a specific capacitance of 62.5 F g –1 at 1 A g –1 and demonstrating remarkable rate capability. Electrochemical impedance spectroscopy (EIS) reveals a low charge transfer resistance and Warburg impedance, indicating rapid ion diffusion. The Ragone plot highlights a high energy density of 22.22 Wh kg –1 and a power density of 2880 W kg –1, underlining its potential for high-power energy storage. The superior performance is attributed to the synergistic effects of conductive Ti 3 C 2 T x and redox-active 1T/2H MoS 2, enabling efficient charge transport and abundant electroactive sites. This work provides a promising pathway for designing advanced electrode materials for high-performance energy storage systems.