Cnt interwoven nitrogen and oxygen dual-doped porous carbon nanosheets as free-standing electrodes for high-performance na-se and k-se flexible batteries
文献类型：期刊论文
| 作者 | Yao, Yu1; Chen, Mingiong2; Xu, Rui1; Zeng, Sifan1; Yang, Hai1; Ye, Shufen1; Liu, Fanfan1; Wu, Xiaojun2; Yu, Yan1,3,4 |
| 刊名 | Advanced materials
 |
| 出版日期 | 2018-12-06 |
| 卷号 | 30期号:49页码:9 |
| ISSN号 | 0935-9648 |
| 关键词 | Biomass carbon Dual-doping K-se batteries Na-se batteries Post-lithium ion batteries |
| DOI | 10.1002/adma.201805234 |
| 通讯作者 | Yu, yan(yanyumse@ustc.edu.cn) |
| 英文摘要 | Na-se and k-se batteries are attractive as a stationary energy storage system because of much abundant resources of na and k in the earth's crust. as the alloy-type se has a severe pulverization issue, one critical challenge to develop advanced na-se and k-se batteries is to explore a highly efficient and stable se-based cathode. herein, a flexible free-standing se/carbon composite film is prepared by encapsulation of se into a carbon nanotube (cnt) interwoven n,o dual-doped porous carbon nanosheet (se@nopc-cnt). the 3d interconnected cnt uniformly wrapped on the n, o dual-doped porous carbon skeletons improves the flexibility and offers an interconnected conductive pathway for rapid ionic/electronic transport. in addition, the n, o dual-doping significantly enhances the chemical affinity and adhesion between naxse/kxse (0 < x <= 2) and porous carbon, which is confirmed by density functional theory calculation. when used as the cathode in na-se batteries, the se@nopc-cnt delivers a remarkable reversible capacity of 400 ma h g(-1) at 1 a g(-1) after 2000 cycles with a 0.008% capacity decay per cycle. for k-se batteries, it also exhibits an excellent cycling stability (335 ma h g(-1) after 700 cycles at 0.8 a g(-1)). this unique design may open an avenue for practical application of flexible na-se and k-se batteries. |
| WOS关键词 | LITHIUM-ION ; ELECTROCHEMICAL PERFORMANCE ; SELENIUM COMPOSITE ; LI-SE ; SODIUM ; SULFUR ; CATHODE ; ENERGY ; ARCHITECTURE |
| 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 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000453377200029 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372953 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Yu, Yan |
| 作者单位 | 1.Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Liaoning, Peoples R China 4.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Yu,Chen, Mingiong,Xu, Rui,et al. Cnt interwoven nitrogen and oxygen dual-doped porous carbon nanosheets as free-standing electrodes for high-performance na-se and k-se flexible batteries[J]. Advanced materials,2018,30(49):9. |
| APA | Yao, Yu.,Chen, Mingiong.,Xu, Rui.,Zeng, Sifan.,Yang, Hai.,...&Yu, Yan.(2018).Cnt interwoven nitrogen and oxygen dual-doped porous carbon nanosheets as free-standing electrodes for high-performance na-se and k-se flexible batteries.Advanced materials,30(49),9. |
| MLA | Yao, Yu,et al."Cnt interwoven nitrogen and oxygen dual-doped porous carbon nanosheets as free-standing electrodes for high-performance na-se and k-se flexible batteries".Advanced materials 30.49(2018):9. |
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来源：大连化学物理研究所
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