Construction of N-doped C@MoS2 heteroshell with the yolk of Sn nanoparticles as high-performance anodes for sodium-ion batteries
文献类型：期刊论文
| 作者 | Mao, Peiyuan1,2; Wang, Yong1; Xiao, Pandeng1; Zhang, Wen1; Rao, Shun1; Wang, Zhi2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2022-02-05 |
| 卷号 | 892页码:9 |
| 关键词 | Tin Molybdenum Sulfide Yolk-heteroshell Nanostructures Sodium-ion batteries |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2021.162157 |
| 英文摘要 | Herein, we demonstrate the reasonable design and preparation of yolk-heteroshell Sn@N-doped C@MoS2 nanospheres as anode materials in sodium-ion battery. Through an effective multi-step strategy, Sn nanoparticles are encapsulated in N-doped C nanocage surrounded by ultra-thin MoS2 nanosheets to form Sn@N-doped C@MoS2 nanospheres. In this novel structure, Sn nanoparticles with high theoretical capacity improve the space utilization inside the heteroshell; the N-doped carbon nanocage as the skeleton not only inhibits the mutual accumulation of Sn and MoS2, but also improves conductivity; the outer MoS2 ultra-thin sheets can consolidate C@MoS2 heteroshell, provide numerous active sites and favor the fast diffusion of Na+/e(-). Notably, the combination of carbon nanocage and MoS2 sheets in the yolk-heteroshell structure can effectually buffer the volume expansion of Sn nanoyolks and reinforce C@MoS2 heteroshell while reducing the carbon content. Therefore, the yolk-heteroshell structure plays a crucial role in enhanced reversible capacity and cyclic stability of Sn@N-doped C@MoS2 nanospheres, which activates their sodium storage potential. The yolk-heteroshell Sn@N-doped C@MoS2 nanospheres exhibit high reversible capacity of 488.4 mAh g(-1) at 0.1 A g(-1) after 300 cycles and long-cycle stability of 350.6 mAh g(-1) at 0.5 A g(-1) after 500 cycles. Moreover, their full cell delivers a stable reversible discharge capacity of about 80.1 mAh g(-1) after 30 cycles at 0.5 C. This work provides a feasible yolk-heteroshell strategy for Sn-based composite nanomaterials. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | LITHIUM-ION ; AT-C ; HIGH-CAPACITY ; CARBON ; MOS2 ; NANOSHEETS ; NANOCOMPOSITES ; MICROSPHERES ; COMPOSITES ; NANOFIBERS |
| 资助项目 | State Key Program of Natural Science Foundation of China[51934006] ; OpenResearch Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2019-D-02] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000705005600002 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | State Key Program of Natural Science Foundation of China ; OpenResearch Fund of State Key Laboratory of Multiphase Complex Systems |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50460]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Yong; Wang, Zhi |
| 作者单位 | 1.Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Peiyuan,Wang, Yong,Xiao, Pandeng,et al. Construction of N-doped C@MoS2 heteroshell with the yolk of Sn nanoparticles as high-performance anodes for sodium-ion batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,892:9. |
| APA | Mao, Peiyuan,Wang, Yong,Xiao, Pandeng,Zhang, Wen,Rao, Shun,&Wang, Zhi.(2022).Construction of N-doped C@MoS2 heteroshell with the yolk of Sn nanoparticles as high-performance anodes for sodium-ion batteries.JOURNAL OF ALLOYS AND COMPOUNDS,892,9. |
| MLA | Mao, Peiyuan,et al."Construction of N-doped C@MoS2 heteroshell with the yolk of Sn nanoparticles as high-performance anodes for sodium-ion batteries".JOURNAL OF ALLOYS AND COMPOUNDS 892(2022):9. |
入库方式： OAI收割
来源：过程工程研究所
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