Facile synthesis of MOF derived CoSe2 nanoparticles embedded in N-doped carbon nanosheet array and application for supercapacitor.

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ID: 92520
2020
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Abstract
MOF-derived composites of transition metal oxide and porous carbon show great potential for energy storage applications. Selenylation is an effective strategy to improve the electrochemical properties of electrode materials. A facile one-step derivation and selenylation of MOFs is proposed here to obtain CoSe2 nanoparticles embedded into a N-doped carbon framework material (CoSe2/NC). Moreover, the composite is directly grown on nickel foam as nanosheet arrays, rather than other materials representing as powders. The CoSe2/NC electrode with special construction exhibits high capacity of 120.2 mAh g-1 at 1 A g-1 and excellent cyclic ability of 8% loss after 10000 cycles. An asymmetric supercapacitor of CoSe2/NC-NF//AC displays a maximum energy density of 40.9 Wh kg-1 at 980 W kg-1. Moreover, the device has demonstrated that it can successfully charge a mobile phone. The outstanding performance indicates a promising potential of CoSe2/NC-NF electrodes for supercapacitors.
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miao2020facileacs Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Miao, Chenxu;Xiao, Xihao;Gong, Yan;Zhu, Kai;Cheng, Kui;Ye, Ke;Yan, Jun;Cao, Dianxue;Wang, Guiling;Xu, Panpan;
Journal ACS applied materials & interfaces
Year 2020
DOI
10.1021/acsami.9b22606
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Keywords
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Said Nadeem May 08, 2020 23:28
this is a test comment.