| Boosting potassium-ion battery performance by encapsulating red phosphorus in free-standing nitrogen-doped porous hollow carbon nanofibers | |
| Wu, Ying1; Hu, Shuhe1; Xu, Rui1; Wang, Jiawei3; Peng, Zhangquan3; Zhang, Qiaobao2; Yu, Yan1,4,5 | |
| 刊名 | Nano letters
 |
| 2019-02-01 | |
| 卷号 | 19期号:2页码:1351-1358 |
| 关键词 | Potassium ion batteries Red phosphorus Porous hollow Carbon nanofibers Nitrogen doped |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/acs.nanolett.8b04957 |
| 通讯作者 | Zhang, qiaobao(zhangqiaobao@xmu.edu.cn) ; Yu, yan(yanyumse@ustc.edu.cn) |
| 英文摘要 | Potassium-ion batteries (kibs) are a promising alternative to lithium-ion batteries (libs) for large-scale renewable energy storage owning to the natural abundance and low cost of potassium. however, the biggest challenge for kibs application lies in the lack of suitable electrode materials that can deliver long cycle life and high reversible capacity. in this work, we realized unprecedented long cycle life with high reversible capacity (465 mah g(-1) at 2 a g(-1) after 800 cycles) as well as outstanding rate capability (342 mah g(-1) at 5 a g(-1)) for kibs by embedding red p into free-standing nitrogen-doped porous hollow carbon nanofibers (red p@n-phcnfs). this design circumvents the problems of pulverization and aggregation of p particles. the in situ transmission electron microscopy (tem) investigation reveals the structural robustness of the composite fibers during potassiation. the formation of p-c chemical bonds as well as nitrogen doping in the carbon matrix can facilitate the sturdy contact and enhance the adsorption energy of p atoms evidenced by dft results. in situ raman and ex situ xrd demonstrate that the final discharge product of the red p@n-phcnfs is k4p3. |
| WOS关键词 | K-ION ; ANODE MATERIAL ; BLACK PHOSPHORUS ; COMPOSITE ; SODIUM ; ELECTRODES ; GRAPHITE ; CAPACITY |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000459222300096 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2372795 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Zhang, Qiaobao; Yu, Yan |
| 作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Mat Sci & Engn, Key Lab Mat Energy Convers,CAS, Hefei 230026, Anhui, Peoples R China 2.Xiamen Univ, Dept Mat Sci & Engn, Coll Mat, Xiamen 361005, Fujian, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China 4.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China 5.Chinese Acad Sci, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Ying,Hu, Shuhe,Xu, Rui,et al. Boosting potassium-ion battery performance by encapsulating red phosphorus in free-standing nitrogen-doped porous hollow carbon nanofibers[J]. Nano letters,2019,19(2):1351-1358. |
| APA | Wu, Ying.,Hu, Shuhe.,Xu, Rui.,Wang, Jiawei.,Peng, Zhangquan.,...&Yu, Yan.(2019).Boosting potassium-ion battery performance by encapsulating red phosphorus in free-standing nitrogen-doped porous hollow carbon nanofibers.Nano letters,19(2),1351-1358. |
| MLA | Wu, Ying,et al."Boosting potassium-ion battery performance by encapsulating red phosphorus in free-standing nitrogen-doped porous hollow carbon nanofibers".Nano letters 19.2(2019):1351-1358. |
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