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Description: 〈p〉Publication date: 1 April 2020〈/p〉 〈p〉〈b〉Source:〈/b〉 Applied Surface Science, Volume 508〈/p〉 〈p〉Author(s): Shundong Guan, Tianshi Wang, Xiuli Fu, Li-Zhen Fan, Zhijian Peng〈/p〉 〈div xml:lang="en"〉 〈h5〉Abstract〈/h5〉 〈div〉〈p〉Layered SnS〈sub〉2〈/sub〉 has attracted extensive attention as promising anode material for sodium-ion storage owing to its high theoretical specific capacity. However, the practical performance is always hindered by its inferior rate capability and severe capacity fading. Herein, a novel coherent SnS〈sub〉2〈/sub〉/NiS〈sub〉2〈/sub〉 hetero-nanosheet arrays on carbon cloth (SnS〈sub〉2〈/sub〉/NiS〈sub〉2〈/sub〉@CC) is fabricated through a facile one-step solvothermal method by controlling the synchronous growth of SnS〈sub〉2〈/sub〉 and NiS〈sub〉2〈/sub〉. Benefiting from the strong coupling effect between SnS〈sub〉2〈/sub〉 and NiS〈sub〉2〈/sub〉, and thus the markedly elevated electrical conductivity and charge transfer rate for sodiation/desodiation reaction, such composite exhibits significantly enhanced performance than its pure SnS〈sub〉2〈/sub〉 counterpart as the anode for sodium-ion battery, presenting a high reversible capacity (909.2 mA h g〈sup〉−1〈/sup〉 of the fifth cycle at 200 mA g〈sup〉−1〈/sup〉), excellent rate capability (360 mA h g〈sup〉−1〈/sup〉 at 5 A g〈sup〉−1〈/sup〉) and satisfying cycling stability (588.9 and 343.2 mA h g〈sup〉−1〈/sup〉 at 0.5 and 2 A g〈sup〉−1〈/sup〉 after 100 cycles, respectively). Moreover, the measured Na〈sup〉+〈/sup〉 diffusion coefficient for such SnS〈sub〉2〈/sub〉/NiS〈sub〉2〈/sub〉@CC electrode is almost two orders of magnitude higher than that of pure SnS〈sub〉2〈/sub〉@CC. Such heterogeneous structuring for enhancing the rate performance could offer an effectively alternative way for the development of advanced electrode materials for energy storage devices.〈/p〉〈/div〉 〈/div〉 〈div xml:lang="en"〉 〈h5〉Graphical abstract〈/h5〉 〈div〉〈p〉〈figure〉〈img src="https://ars.els-cdn.com/content/image/1-s2.0-S0169433219340589-ga1.jpg" width="399" alt="Graphical abstract for this article" title=""〉〈/figure〉〈/p〉〈/div〉 〈/div〉