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

TITLE=Supported SnS2 Nanosheet Arrays on Ni Foam for Supercapacitors

JOURNAL=Frontiers in Energy Research

VOLUME=10

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.870329

DOI=10.3389/fenrg.2022.870329

ISSN=2296-598X

ABSTRACT=<p>Layered metal sulfides are regarded as potential candidates for supercapacitive electrode materials due to the unique spatial dimensions for charge transport. Herein, self-supported SnS<sub>2</sub> nanosheet arrays on nickel (Ni) foam were successfully fabricated <italic>via</italic> a facile solvothermal approach. Interestingly, the continuous and high-density SnS<sub>2</sub> nanosheet arrays are interconnected to form porous Ni@SnS<sub>2</sub> electrode materials, which suppress the self-aggregation of SnS<sub>2</sub> and provide outstanding conductivity with 3D-networked Ni framework. The Ni@SnS<sub>2</sub> electrode demonstrates a high areal specific capacitance of 1965.56 mF cm−<sup>2</sup> at a current density of 1 mA cm−<sup>2</sup> 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.</p>