Frontiers in Energy Research (Apr 2022)

Supported SnS2 Nanosheet Arrays on Ni Foam for Supercapacitors

  • Haibin Sun,
  • Shuangshuang Liang,
  • Wenrui Zheng,
  • Congcong Liu,
  • Chao Zhang,
  • Zhichao Ji,
  • Shenghong Liu,
  • Wenhe Xie

DOI
https://doi.org/10.3389/fenrg.2022.870329
Journal volume & issue
Vol. 10

Abstract

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Layered metal sulfides are regarded as potential candidates for supercapacitive electrode materials due to the unique spatial dimensions for charge transport. Herein, self-supported SnS2 nanosheet arrays on nickel (Ni) foam were successfully fabricated via a facile solvothermal approach. Interestingly, the continuous and high-density SnS2 nanosheet arrays are interconnected to form porous Ni@SnS2 electrode materials, which suppress the self-aggregation of SnS2 and provide outstanding conductivity with 3D-networked Ni framework. The Ni@SnS2 electrode demonstrates a high areal specific capacitance of 1965.56 mF cm−2 at a current density of 1 mA cm−2 and satisfactory cycling stability (78.3% capacity retention after 10,000 cycles). This self-supported porous structure provides a promising way to build advanced electrode material for supercapacitors.

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