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A free‐standing electrode based on 2D SnS 2 nanoplates@ 3D carbon foam for high performance supercapacitors
Author(s) -
Wang Dongfeng,
Yan Xuehua,
Zhou Chen,
Wang Jingjing,
Yuan Xiaoxue,
Jiang Hui,
Zhu Yihan,
Cheng Xiaog,
Li Ruifeng
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.5540
Subject(s) - supercapacitor , capacitance , composite number , electrode , electrochemistry , current density , power density , materials science , microstructure , carbon fibers , chemical engineering , nanotechnology , composite material , chemistry , power (physics) , physics , quantum mechanics , engineering
Summary A reasonable formation of an electrode material with three‐dimensional (3D) microstructure for supercapacitors was proposed. Two‐dimensional (2D) SnS 2 nanoplates were uniformly in situ grown on 3D carbon foam (CF) through a controllable strategy. The composite displayed excellent electrochemical performance due to the synergistic effect of SnS 2 and CF. The SnS 2 @CF‐2 composite containing 23.92 wt% of SnS 2 has a superior specific capacitance of 283.6 F g −1 at the current density of 1 A g −1 . Moreover, a symmetric supercapacitor based on SnS 2 @CF‐2 composite has a capacitance of 82.5 F g −1 at 1 A g −1 and a high energy density of 13.9 Wh kg −1 at the power density of 551.7 W kg −1 .