Engineering raspberry-like CuCo₂S₄@ZnS hollow particles encapsulated with reduced graphene oxide for hybrid supercapacitors

Abstract

Transition-metal sulfides (TMSs) stand out as hopeful materials for supercapacitors due to their plentiful electroactive sites and relatively high conductivity compared with oxide counterparts. Among them, copper-cobalt sulfide is regarded...

Porous nanosheet–nanosphere@nanosheet FeNi2-LDH@FeNi2S4 core–shell heterostructures for asymmetric supercapacitors

“…9D shows the relationship between the logarithm of the redox peak currents ( i , mA) and scan rate ( v , mV s −1 ). The charge storage principle is as follows: 43 log i = log a + b log v where a and b represent constants. In general, b values of 0.5 and 1.0 imply that the charge storage mechanism in the electrode material is primarily controlled by diffusion and surface, respectively.…”

Review and Outlook of Zinc Sulfide Nanostructures for Supercapacitors

“…The RCCS-ZSH8 nanostructures, when enclosed within an rGO network, demonstrate exceptional electrochemical performance and enhanced electrical conductivity. The incorporation of the rGO network avoids the aggregation of particles and ensures the structural integrity …”

“…The hybrid ASC configuration, ZC-2||AC HASC, achieved high specific energy and power density. 186 Ameri et al 187 explored the capacity of TMSs for supercapacitors, as a result of their exceptional electrical conductivity and many electroactive sites. A new hollow nanostructure, RCCS-ZSH, was fabricated by combining CuCo 2 S 4 hollow nanospheres with porous ZnS shells for an ASC device.…”

Unveiling the potential of nanosheet-based NiTe2@MnTe hollow nanospheres in hybrid supercapacitor technology

“…The significance of sustainable energy storage systems and the compelling advantages of supercapacitors cannot be overstated, given the ongoing global energy crisis and environmental challenges. 1,2 Supercapacitors distinguish themselves through their impressive lifespan, high power density, environmental compatibility, and affordability. 3–8 However, their lower energy density, compared to that of batteries, limits their broader application.…”