An ionic liquid-assisted route towards SnS2 nanoparticles anchored on reduced graphene oxide for lithium-ion battery anode
| Autor: | Ji-Long Li, Xiao-Ying Huang, Wen-Hua Liao, Chengfeng Du, Min Cheng, Jian-Rong Li, Qianqian Hu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Oxide Ionic bonding chemistry.chemical_element Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Inorganic Chemistry chemistry.chemical_compound law Materials Chemistry Physical and Theoretical Chemistry Nanocomposite Graphene 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials Anode chemistry Chemical engineering Ionic liquid Ceramics and Composites 0210 nano-technology Tin |
| Zdroj: | Journal of Solid State Chemistry. 296:122022 |
| ISSN: | 0022-4596 |
| DOI: | 10.1016/j.jssc.2021.122022 |
| Popis: | The nanocomposites of SnS2 and reduced graphene oxide (SnS2@rGO) are synthesized by a unique ionic liquid-assisted route, which involves SnSx precursors prepared by the reaction of elemental tin and sulfur in the ionic liquid of 1-butyl-2,3-dimethylimidazolium chloride. The SnS2 contents in the composites can be adjusted by changing the ratios of SnSx precursor to graphene oxide (GO). Transmission electron microscopy (TEM) observations clearly show that SnS2 nanoparticles with a diameter of about 5 nm are anchored on reduced graphene oxide (rGO). The synthesized composites are used as the anode materials for lithium-ion batteries (LIBs), which demonstrate highly reversible capacities and outstanding cycle stabilities. The discharge specific capacity can still reach 1045.8 mAh·g−1 after 700 cycles at a current density of 500 mA g−1. The prepared SnS2@rGO composites with highly reversible capacities and good cycle performance may be promising LIBs anode materials. |
| Databáze: | OpenAIRE |
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