Synthesis of molybdenum disulfide nanosheet/polyphosphazene carbon/ferroferric oxide nanoparticles ternary nanostructure for supercapacitors

A novel ternary nanostructure comprising a two-dimensional nanosheet, polymer carbon material, and transition metal nanoparticle was developed for supercapacitor applications. The MoS2/PZSC/Fe3O4 composite was synthesized and carbonized through in-situ growth of poly(cyclotriphosphazene-co-4,4’-sulfonyldiphenol) Polyphosphazene (PZS) and ferroferric oxide (Fe3O4) onto Molybdenum disulfide (MoS2) layers. This composite effectively combines the individual advantages of each constituent. The pseudocapacitive performance of MoS2/PZSC/Fe3O4 was thoroughly evaluated, revealing a maximum specific capacitance of 433.3 F g−1 at a current density of 2 A g−1. Furthermore, an asymmetric supercapacitor was assembled using MoS2/PZSC/Fe3O4 as the negative electrode, achieving an energy density of 25.6 Wh kg−1 at a power density of 400 W kg−1, with good cycling stability. These results highlight the significant potential of MoS2/PZSC/Fe3O4 as a promising material for supercapacitor applications.