Facile hydrothermal synthesis of novel ZnWO4/ZnCo2O4 electrode for high-performance supercapacitors

Nanoarchitectures featuring ZnWO4/ZnCo2O4 were successfully prepared via a facile hydrothermal technique, and the electrochemical performance of the resulting electrode was characterized. Electrochemical analyses revealed that the specific capacitance was 180.121 mA h g(-1) at a current density of 1 A g(-1), with an excellent capacity retention of 73.94% and cycling stability of 97.83% over 4000 cycles. This excellent performance of ZnWO4/ZnCo2O4 demonstrated that the as-synthesized composite on the Ni foam effectively supported pathways allowing rapid diffusion of electrons/ions. Hence the ZnWO4/ZnCo2O4 electrode material is a promising candidate for next-generation high-performance supercapacitors. (C) 2021 Elsevier B.V. All rights reserved.

Automated summary

Nanoarchitectures of ZnWO4/ZnCo2O4 were prepared via a facile hydrothermal technique, showing excellent electrochemical performance with a specific capacitance of 180.121 mA h g(-1) at 1 A g(-1), high capacity retention of 73.94%, and cycling stability of 97.83% over 4000 cycles. This indicates the promising potential of ZnWO4/ZnCo2O4 as electrode material for next-generation high-performance supercapacitors.