Biomass-Derived P/N-Co-Doped Carbon Nanosheets Encapsulate Cu3P Nanoparticles as High-Performance Anode Materials for Sodium–Ion Batteries
| العنوان: | Biomass-Derived P/N-Co-Doped Carbon Nanosheets Encapsulate Cu3P Nanoparticles as High-Performance Anode Materials for Sodium–Ion Batteries |
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| المؤلفون: | Yanyou Yin, Yu Zhang, Nannan Liu, Bing Sun, Naiqing Zhang |
| المصدر: | Frontiers in Chemistry Frontiers in Chemistry, Vol 8 (2020) |
| بيانات النشر: | Frontiers Media S.A., 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, P/N-co-doped carbon, nanosheets, Diffusion, chemistry.chemical_element, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Energy storage, Ion, lcsh:Chemistry, Transition metal, Original Research, biomass, General Chemistry, Cu3P, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Anode, Chemistry, lcsh:QD1-999, chemistry, Chemical engineering, Electrode, sodium-ion batteries, 0210 nano-technology, Carbon |
| الوصف: | Biomass-derived approaches have been accepted as a practical way for the design of transitional metal phosphides confined by carbon matrix (TMPs@C) as energy storage materials. Herein, we successfully synthesize P/N-co-doped carbon nanosheets encapsulating Cu3P nanoparticles (Cu3P@P/N-C) by a feasible aqueous reaction followed by a phosphorization procedure using sodium alginate as the biomass carbon source. Cu-alginate hydrogel balls can be squeezed into two-dimensional (2D) nanosheets through a freeze–drying process. Then, Cu3P@P/N-C was obtained after the phosphorization procedure. This rationally designed structure not only improved the kinetics of ion/electron transportation but also buffered the volume expansion of Cu3P nanoparticles during the continuous charge and discharge processes. In addition, the 2D P/N co-doped carbon nanosheets can also serve as a conductive matrix, which can enhance the electronic conductivity of the whole electrode as well as provide rapid channels for electron/ion diffusion. Thus, when applied as anode materials for sodium-ion batteries, it exhibited remarkable cycling stability and rate performance. Prominently, Cu3P@P/N-C demonstrated an outstanding reversible capacity of 209.3 mAh g−1 at 1 A g−1 after 1,000 cycles. Besides, it still maintained a superior specific capacity of 118.2 mAh g−1 after 2,000 cycles, even at a high current density of 5 A g−1. |
| اللغة: | English |
| تدمد: | 2296-2646 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d12caf99ead27d55f73de249dd38b58 http://europepmc.org/articles/PMC7216970 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....4d12caf99ead27d55f73de249dd38b58 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 22962646 |
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