Surfactant-assisted synthesis of ultrathin two-dimensional Co3O4 nanosheets for applications in lithium-ion batteries and ultraviolet photodetector
| Autor: | Xiujuan Jin, Jiao Yang, Feifei Ren, Liang Yu, Meizhen Gao, Jianfei Lei |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Charge cycle Photodetector chemistry.chemical_element Nanotechnology 02 engineering and technology 010402 general chemistry Electrochemistry medicine.disease_cause 01 natural sciences Ion Inorganic Chemistry Materials Chemistry medicine Physical and Theoretical Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials Anode chemistry Ceramics and Composites Lithium 0210 nano-technology Current density Ultraviolet |
| Zdroj: | Journal of Solid State Chemistry. 274:124-133 |
| ISSN: | 0022-4596 |
| DOI: | 10.1016/j.jssc.2019.03.033 |
| Popis: | Ultrathin two-dimensional (2D) Co3O4 nanosheets were prepared by surfactant-assisted self-assembly method. We demonstrate a high reversible capacity and an excellent rate capability of ultrathin 2D Co3O4 nanosheets as anodes in Li ion batteries. At a current density of 100 mA g−1, the nanosheets maintain an extraordinary capacity of 1868.6 mA h g−1 after 30 discharge/charge cycles, and nearly 100% capacity retention. When the current is increased to 400 mA g−1, 112% of the capacity can be retained. With their ease of large area synthesis and superior electrochemical properties, the 2D Co3O4 nanosheets will be interesting for practical Li ion batteries. Additionally, 2D Co3O4 nanosheets also showed both high stability and reproducibility as ultraviolet photodetector. |
| Databáze: | OpenAIRE |
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