Rational design of NiSe2@rGO nanocomposites for advanced hybrid supercapacitors

Rational design of NiSe2@rGO nanocomposites for advanced hybrid supercapacitors
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用于先进混合超级电容器的 NiSe2@rGO 纳米复合材料的合理设计

DOI:
10.1016/j.jmrt.2021.11.036
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发表时间:
2021-11
期刊:
Journal of Materials Research and Technology
影响因子:
--
通讯作者:
Dai Shuge
Dai Shuge
中科院分区:
其他
文献类型:
--
作者:
Qu Jiaqi;Bai Yucheng;Li Xiaomeng;Song Kailan;Zhang Sen;Wang Xiaoxia;Wang Xinchang;Dai Shuge

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Hybrid supercapacitors represent a promising candidate for grid-scale energy storage devices because of their excellent high-power density, inherent safety and low cost. Here we report a novel NiSe2@rGO nanocomposite (reduced graphene oxide decorated NiSe2nanoparticles), which shows high specific capacity of 467 C g−1at 1 A g−1and superior rate performance (∼72.8% of the capacity retention at 20 A g−1). Moreover, a hybrid supercapacitor (HSC) assembled from the NiSe2@rGO positive electrode and rGO negative electrode delivers high energy density (34.3 Wh kg−1) and splendid cycling lifespan (∼93% of the capacity retention over 6500 cycles). This study provides a novel insight on high-performance hybrid supercapacitors.
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