From ZnSn(OH)6 to SnS2: Topotactic transformation synthesis of SnS2 hierarchical microcubes with superior Li-ion storage performance. (December 2017)

• Record Type: Journal Article
• Authors: Ji, Shaomin; Yu, Litao; Xu, Xijun; Zhang, Liguo; Liu, Jun
• Is Part Of: Materials research bulletin. Volume 96:Part 1(2017)
• Page Start: 28
• Page End: 34
• Publication Date: 2017-12
• Subjects: Crystal growth -- Chemical synthesis -- Electrochemical properties -- Energy storage -- Microstructure; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2016.11.002
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: Uniform 3D hierarchical SnS2 microcubes were synthesized via a topotactic transformation route. The anode of these 3D SnS2 microcubes exhibited stable cycling performance. The anode of these 3D SnS2 microcubes also showed superior rate capability. Abstract: The 3D hierarchical microstructured electrodes by assembling the individual 1D/2D nanosubunits can fully take advantage of the merit of 1D/2D nanostructured materials, as well as alleviate their drawbacks. In this work, SnS2 3D hierarchical microcubes consisting of 2D nanosheet subunits were facilely synthesized via a simple topotactic transformation with room-temperature coprecipitated ZnSn(OH)6 microcubes as the template. Compared to bulk counterparts, this microstructured SnS2 was found to have a unique morphology and electrochemical interfacial regions that facilitated highly efficient Li-ion insertion/extraction and effectively accommodate the large volume changes during charge/discharge cycles. Over the whole 200 cycles at 1C current density, an outstanding cycleing stability is exhibited, with a high stable specific capacity of about 640 mA h g −1 .