Prussian blue derived metal oxides/graphene foam as anode materials for high-performance lithium-ion batteries
| Autor: | Jinxiao Shao, Hu Zhou, Meizhou Zhu, Aihua Yuan, Jianhui Feng |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Prussian blue Materials science Composite number Graphene foam chemistry.chemical_element Condensed Matter Physics Electrochemistry 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Anode law.invention Metal chemistry.chemical_compound chemistry Chemical engineering law visual_art 0103 physical sciences visual_art.visual_art_medium Lithium Calcination Electrical and Electronic Engineering |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 30:982-990 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | Metal oxides have received much attention recently in the field of lithium-ion batteries (LIBs) because of high specific capacities. The combination between metal oxides and carbonaceous materials is an effective approach to improve the LIBs properties. In this contribution, Prussian blue (PB) particles with two different morphologies were loaded on the surface of graphene foam (GF) by a solution impregnation method, and then the Fe2O3/GF composites were obtained after the calcination of PB/GF precursors. The as-prepared Fe2O3/GF products exhibit superior electrochemical properties towards LIBs, and the specific capacity of 645 mA h g−1 can be obtained at 100 mA g−1 even after 200 cycles. The outstanding LIBs performance for the composite can be attributed to the synergistic effect between GF and metal oxides, in which Fe2O3 contributes a high specific capacity, whereas GF improves the electrical conductivity and cycle stability. The relationship between the morphologies of metal oxides and lithium storage properties was also investigated. |
| Databáze: | OpenAIRE |
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