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- W3035551409 abstract "Fabrication of highly reactive and cost-effective electrode materials is a key to efficient functioning of green energy technologies. Decorating redox-active metal sulfides with conductive dopants is one of the most effective approaches to enhance electric conductivity and consequently boost capacitive properties. Herein, hierarchically hollow Ag2S-NiCo2S4 architectures are designed with an enhanced conductivity by a simple solvothermal approach. With the favorable porous characteristics and composition, the optimized Ag2S-NiCo2S4-5 electrode exhibits higher specific capacitance (276.5 mAh g-1 at a current density of 1 A g-1), a good rate performance (56.3% capacity retention at 50 A g-1), and an improved cycling stability (92.4% retention after 2000 cycles). This finding originates from the enhanced charge transportation ability within the hierarchical structure, abundant electroactive sites, and low contact resistance. In addition, a battery supercapacitor device constructed with the Ag2S-NiCo2S4-5 as a positive electrode displays a maximum energy density of 63.3Wh kg-1 at an energy density of 821.8 W kg-1 with an excellent cycling stability (89.4% capacity retention after 10 000 cycles). Therefore, the present work puts forward new possibility to develop composite electrodes for energy storage battery-supercapacitor." @default.
- W3035551409 created "2020-06-19" @default.
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- W3035551409 date "2020-09-04" @default.
- W3035551409 modified "2023-10-01" @default.
- W3035551409 title "Synthesis of porous Ag<sub>2</sub>S−NiCo<sub>2</sub>S<sub>4</sub> hollow architecture as effective electrode material with high capacitive performances" @default.
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- W3035551409 doi "https://doi.org/10.1088/1361-6528/ab9c54" @default.
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- W3035551409 hasPublicationYear "2020" @default.
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