Reduced Graphene Oxide-Wrapped FeS2 Composite as Anode for High-Performance Sodium-Ion Batteries
| العنوان: | Reduced Graphene Oxide-Wrapped FeS2 Composite as Anode for High-Performance Sodium-Ion Batteries |
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| المؤلفون: | Yuxuan Zhu, Qinghong Wang, Can Guo, Jiapeng He, Hongqiang Wang |
| المصدر: | Nano-Micro Letters Nano-Micro Letters, Vol 10, Iss 2, Pp 1-9 (2017) |
| بيانات النشر: | Springer Berlin Heidelberg, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Materials science, Composite number, Oxide, 02 engineering and technology, Conductivity, Anode material, 010402 general chemistry, 01 natural sciences, lcsh:Technology, Article, law.invention, chemistry.chemical_compound, law, FeS2, Electrical and Electronic Engineering, Reduced graphene oxide (rGO), Graphene, lcsh:T, Sodium-ion battery, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Anode, Enwrapping structure, chemistry, Chemical engineering, Electrode, 0210 nano-technology, BET theory |
| الوصف: | Iron disulfide is considered to be a potential anode material for sodium-ion batteries due to its high theoretical capacity. However, its applications are seriously limited by the weak conductivity and large volume change, which results in low reversible capacity and poor cycling stability. Herein, reduced graphene oxide-wrapped FeS2 (FeS2/rGO) composite was fabricated to achieve excellent electrochemical performance via a facile two-step method. The introduction of rGO effectively improved the conductivity, BET surface area, and structural stability of the FeS2 active material, thus endowing it with high specific capacity, good rate capability, as well as excellent cycling stability. Electrochemical measurements show that the FeS2/rGO composite had a high initial discharge capacity of 1263.2 mAh g−1 at 100 mA g−1 and a high discharge capacity of 344 mAh g−1 at 10 A g−1, demonstrating superior rate performance. After 100 cycles at 100 mA g−1, the discharge capacity remained at 609.5 mAh g−1, indicating the excellent cycling stability of the FeS2/rGO electrode. |
| اللغة: | English |
| تدمد: | 2150-5551 2311-6706 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f48d4fa0dadb52072ce3086413333dd8Test http://europepmc.org/articles/PMC6199086Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....f48d4fa0dadb52072ce3086413333dd8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21505551 23116706 |
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