Synergistic Ti3C2 MXene/MoS2 heterostructure: Unlocking ultra-fast, durable, and high-efficiency energy storage for next-generation supercapacitors

Abstract

Developing advanced electrode materials with high energy storage capacity, excellent cycling stability, and rapid charge–discharge capabilities is pivotal for next-generation supercapacitors. In this study, we present a stable Ti3C2 MXene/MoS2 heterostructure synthesized via a facile hydrothermal method, and the synergistic interaction between MoS2 and Ti3C2 MXene prevents structural collapse and was found to enhance pseudocapacitive charge storage through reversible redox reactions at Mo-active sites. The heterostructure exhibits an impressive specific capacitance of 679.9 F g−1 at 1 A g−1, attributed to its unique 2D/2D architecture that ensures efficient ion diffusion, rapid charge transfer, and abundant electroactive sites. Furthermore, the material demonstrates outstanding cycling stability, retaining 83.81% of its efficiency and 88.45% of its initial capacitance after 10 000 cycles at 20 A g−1. This work highlights the importance of the structural design of the electrode material for robust durability and high performance. Thus, this work paves the path for the next-generation Ti3C2 MXene/MoS2 heterostructure electrodes, making it a promising candidate for ultra-fast, long-lasting, and high-efficiency hybrid materials for advanced supercapacitor technologies.