Electrochemical Lithium Storage Performance of Molten Salt Derived V2SnC MAX Phase
文献类型：期刊论文
| 作者 | Li, Youbing; Ma, Guoliang; Shao, Hui; Xiao, Peng; Lu, Jun; Xu, Jin; Hou, Jinrong; Chen, Ke; Zhang, Xiao; Li, Mian |
| 刊名 | NANO-MICRO LETTERS
 |
| 出版日期 | 2021 |
| 卷号 | 13期号:1 |
| 关键词 | TI3SIC2 POWDERS |
| 英文摘要 | MAX phases are gaining attention as precursors of two-dimensional MXenes that are intensively pursued in applications for electrochemical energy storage. Here, we report the preparation of V2SnC MAX phase by the molten salt method. V2SnC is investigated as a lithium storage anode, showing a high gravimetric capacity of 490 mAh g(-1) and volumetric capacity of 570 mAh cm(-3) as well as superior rate performance of 95 mAh g(-1) (110 mAh cm(-3)) at 50 C, surpassing the ever-reported performance of MAX phase anodes. Supported by operando X-ray diffraction and density functional theory, a charge storage mechanism with dual redox reaction is proposed with a Sn-Li (de)alloying reaction that occurs at the edge sites of V2SnC particles where Sn atoms are exposed to the electrolyte followed by a redox reaction that occurs at V2C layers with Li. This study offers promise of using MAX phases with M-site and A-site elements that are redox active as high-rate lithium storage materials. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21293]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Huang, Q (corresponding author), Qianwan Inst CNiTECH, Ningbo 315336, Peoples R China. 2.Huang, Q (corresponding author), Chinese Acad Sci, Ningbo Inst Ind Technol, Engn Lab Adv Energy Mat, Ningbo 315201, Zhejiang, Peoples R China. 3.Lin, ZF (corresponding author), Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, Youbing,Ma, Guoliang,Shao, Hui,et al. Electrochemical Lithium Storage Performance of Molten Salt Derived V2SnC MAX Phase[J]. NANO-MICRO LETTERS,2021,13(1). |
| APA | Li, Youbing.,Ma, Guoliang.,Shao, Hui.,Xiao, Peng.,Lu, Jun.,...&Huang, Qing.(2021).Electrochemical Lithium Storage Performance of Molten Salt Derived V2SnC MAX Phase.NANO-MICRO LETTERS,13(1). |
| MLA | Li, Youbing,et al."Electrochemical Lithium Storage Performance of Molten Salt Derived V2SnC MAX Phase".NANO-MICRO LETTERS 13.1(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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