High-rate, flexible all-solid-state super-capacitor based on porous aerogel hybrids of MoS2/reduced graphene oxide

A hybrid approach is beneficial to simultaneously exploit the characteristics of capacitive and transition materials to increase the energy density and power density of supercapacitors . In order to achieve optimal electrochemical performance, by means of a facile hydrothermal co-synthesis, we synthesize a three-dimensional porous aerogel consisting of MoS 2 nanosheets and reduced graphene oxide (rGO) with a controllable composition and morphological structure. The MoS 2 /rGO porous aerogel hybrids working as electrode material for supercapacitors , can efficiently enhance surface charge transport, provide more chemical reaction sites, shorten the migration path for electrons and ions, and facilitate the electrolyte diffusion. Using electrochemical feature in two-electrode configurations and symmetric cell devices, we obtain a specific capacitance of 472 F/g with excellent rate capability and cycling stability (98.9% retention after 30,000 cycles) at the current density of 1.0 A/g. Additionally, our designed supercapacitors are flexible under mechanical deformations , which are useful for the next generation wearable electronic devices.