Fe3S4 Nanoparticles Wrapped in an rGO Matrix for Promising Energy Storage: Outstanding Cyclic and Rate Performance
| Autor: | Huai-Guo Xue, Jin-Rong Xiao, Sheng-Ping Guo, Jia-Chuang Li |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Graphene Oxide Nanoparticle Nanotechnology 02 engineering and technology Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Energy storage 0104 chemical sciences Anode law.invention chemistry.chemical_compound chemistry Chemical engineering law Electrode General Materials Science 0210 nano-technology |
| Zdroj: | ACS Applied Materials & Interfaces. 9:37694-37701 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b10406 |
| Popis: | Iron sulfides/oxides/fluorides have been profoundly investigated as electrodes for rechargeable batteries recently in view of their high-theory capacities, low cost, and environmentally benign nature. Here, Fe3S4 nanoparticles (NPs) wrapped in reduced graphene oxide (Fe3S4 NPs@rGO) have been obtained using a simple one-pot hydrothermal approach, which is characterized using various techniques. As the anode for Li-ion batteries, Fe3S4 NPs@rGO displays a reversible discharge capacity of 950 mA h/g after 100 cycles at 0.1 A/g, and 720 mA h/g capacity can be achieved after 800 cycles even at 1 A/g. Even at 10 A/g, 462 mA h/g capacity can be maintained. The excellent electrochemical properties for Fe3S4 NPs@rGO can be ascribed to a collaborative effect between Fe3S4 NPs and an rGO matrix, which possess high Li-ion storage ability and excellent conductivity, respectively. |
| Databáze: | OpenAIRE |
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