Ultrathin ti2nb2o9 nanosheets with pseudocapacitive properties as superior anode for sodium-ion batteries
文献类型：期刊论文
| 作者 | Shen, Laifa1; Wang, Yi1; Lv, Haifeng2; Chen, Shuangqiang1; van Aken, Peter A.1; Wu, Xiaojun2; Maier, Joachim1; Yu, Yan1,2,3,4 |
| 刊名 | Advanced materials
 |
| 出版日期 | 2018-12-01 |
| 卷号 | 30期号:51页码:8 |
| 关键词 | Anode materials Sodium-ions batteries Ti2nb2o9 Ultrathin nanosheets |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201804378 |
| 通讯作者 | Yu, yan(yanyumse@ustc.edu.cn) |
| 英文摘要 | Sodium-ion batteries are emerging as promising candidates for grid energy storage because of the abundant sodium resources and low cost. however, the identification and development of suitable anode materials is far from being satisfactory. here, it is demonstrated that the ti2nb2o9 nanosheets with tunnel structure can be used as suitable anode materials for sodium-ion batteries. ti2nb2o9 nanosheets are synthesized by liquid exfoliation combined with topotactic dehydration, delivering a high reversible capacity of 250 mah g(-1) at 50 ma g(-1) at a suitable average voltage of approximate to 0.7 v. it is found that a low energy diffusion barrier, enlarged interlayer spacing, and exceptional nanoporosity together give rise to high rate performance characterized by pseudocapacitive behavior. the observed high reversible capacity, excellent rate capability, and good cyclability of ti2nb2o9 nanosheets make this material competitive when compared to other sodium insertion anode materials. |
| WOS关键词 | NANOCRYSTALLINE ANATASE TIO2 ; ENERGY-STORAGE ; INSERTION ; INTERCALATION ; LITHIUM ; ELECTRODES ; POINTS ; INNER ; OXIDE |
| 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 |
| WOS记录号 | WOS:000453926000004 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373006 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Yu, Yan |
| 作者单位 | 1.Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany 2.Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China 4.Chinese Acad Sci, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Laifa,Wang, Yi,Lv, Haifeng,et al. Ultrathin ti2nb2o9 nanosheets with pseudocapacitive properties as superior anode for sodium-ion batteries[J]. Advanced materials,2018,30(51):8. |
| APA | Shen, Laifa.,Wang, Yi.,Lv, Haifeng.,Chen, Shuangqiang.,van Aken, Peter A..,...&Yu, Yan.(2018).Ultrathin ti2nb2o9 nanosheets with pseudocapacitive properties as superior anode for sodium-ion batteries.Advanced materials,30(51),8. |
| MLA | Shen, Laifa,et al."Ultrathin ti2nb2o9 nanosheets with pseudocapacitive properties as superior anode for sodium-ion batteries".Advanced materials 30.51(2018):8. |
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来源：大连化学物理研究所
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