Fabrication of free-standing N-doped carbon/TiO2 hierarchical nanofiber films and their application in lithium and sodium storages
| Autor: | Yueming Li, Jinran Shen, Liqiang Li, Long Zhang, Wentao Hu, Xiao-Jun Lv |
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| Rok vydání: | 2017 |
| Předmět: |
Fabrication
Materials science Mechanical Engineering Metals and Alloys chemistry.chemical_element Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Electrospinning 0104 chemical sciences Anode chemistry Mechanics of Materials Nanofiber Electrode Materials Chemistry Lithium Nanoarchitectures for lithium-ion batteries 0210 nano-technology Carbon |
| Zdroj: | Journal of Alloys and Compounds. 701:372-379 |
| ISSN: | 0925-8388 |
| Popis: | To simplify the fabrication of electrode in batteries and improve the electrochemical performance, free-standing films composed of N-doped carbon incorporated TiO 2 hierarchical nanofibers were prepared via electrospinning followed by heat-treatment under a nitrogen atmosphere in this study. It is found that hierarchical nanofibers were formed at 700 °C or above due to the phase transformation and the presence of carbon matrix. The as-prepared film was tested as an anode in lithium-ion batteries and sodium-ion batteries. Electrochemical results demonstrate a high rate performance (180 mAh g −1 at 5 A g −1 in lithium ion batteries) and excellent cycle stability can be achieved in lithium-ion batteries as well as in sodium-ion batteries. This self-standing film is binder free and thus promising for scale-up applications for lithium-ion batteries and sodium-ion batteries with easy fabrication and satisfactory electrochemical performance. |
| Databáze: | OpenAIRE |
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