首页|(162850)Construction of tremella-like Co_9S_8@NiCo_2S_4 heterostructure nanosheets integrated electrode for high-performance hybrid supercapacitorsConceptualization, Methodology, Formal analysis
(162850)Construction of tremella-like Co_9S_8@NiCo_2S_4 heterostructure nanosheets integrated electrode for high-performance hybrid supercapacitorsConceptualization, Methodology, Formal analysis
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
Transition metal sulfides (TMSs) have been widely researched as promising electrode materials for super-capacitors because of their high theoretical capacitance and rich redox reactive sites. In this work, tremella-like core-shell Co_9S_8@NiCo_2S_4 heterogeneous nanosheets were directly grown on Nickel foamed (NF) through the hydrothermal+electrodeposition method to obtain a self-supporting electrode. Benefiting from its unique tremella-like structure, ultra-thin nanosheets, and the positive synergies between Co_9S_8 and NiCo_2S_4, the prepared Co_9S_8@NiCo_2S_4@NF electrode presents a high specific capacity of 513 C g~(-1) (specific capacitance -1026 F g~(-1)) at 1 A g~(-1) with superior rate capability (62.8% capacitance retention rate at 10 A g~(-1)). Furthermore, the fabricated Co_9S_8@NiCo_2S_4@NF//active carbon (AC) hybrid supercapacitor displays a high energy density of 30 Wh kg~(-1) at a power density of 731.8 W kg~(-1) and superior cycling stability. The results prove that the strategy of hydrothermal+electrodeposition is a very effective method for the preparation of energy storage and conversion materials with unique core-shell morphology.
Hybrid supercapacitorTransition metal sulfidesCore-shellHydrothermal methodElectrodeposition
Yuying Yang、Dalan Qian、Hong Zhu
展开 >
Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Cansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China
NSTL
Elsevier
