Structural engineering of sulfur-doped carbon encapsulated bismuth sulfide core-shell structure for enhanced potassium storage performance
文献类型：期刊论文
| 作者 | Wang, Changlai2,3; Lu, Jian3; Tong, Huigang3; Wu, Shuilin2; Wang, Dongdong5; Liu, Bin1; Cheng, Ling3; Lin, Zhiyu3; Hu, Lin4; Wang, Hui4 |
| 刊名 | NANO RESEARCH
 |
| 出版日期 | 2021-05-26 |
| 关键词 | structural engineering potassium-ion batteries core-shell structure diffusion barrier full cell |
| ISSN号 | 1998-0124 |
| DOI | 10.1007/s12274-021-3560-3 |
| 通讯作者 | Zhang, Wenjun(apwjzh@cityu.edu.hk) ; Chen, Qianwang(cqw@ustc.edu.cn) |
| 英文摘要 | Owing to the high theoretical capacity, metal sulfides have emerged as promising anode materials for potassium-ion batteries (PIBs). However, sluggish kinetics, drastic volume expansion, and polysulfide dissolution during charge/discharge result in unsatisfactory electrochemical performance. Herein, we design a core-shell structure consisting of an active bismuth sulfide core and a highly conductive sulfur-doped carbon shell (Bi2S3@SC) as a novel anode material for PIBs. Benefiting from its unique core-shell structure, this Bi2S3@SC is endowed with outstanding potassium storage performance with high specific capacity (626 mAh.g(-1) under 50 mA.g(-1)) and excellent rate capability (268.9 mAh.g(-1) at 1 A.g(-1)). More importantly, a Bi2S3@SC//KFe[Fe(CN)(6)] full cell is successfully fabricated, which achieves a high reversible capacity of 257 mAh.g(-1) at 50 mA.g(-1) over 50 cycles, holding great potentials in practical applications. Density functional theory (DFT) calculations reveal that potassium ions have a low diffusion barrier of 0.54 eV in Bi2S3 due to the weak van der Waals interactions between layers. This work heralds a promising strategy in the structural design of high-performance anode materials for PIBs. |
| WOS关键词 | ION BATTERIES ; LONG-LIFE ; ANODES ; CHALLENGES ; COMPOSITE ; SYSTEMS ; LITHIUM ; NANOROD ; BI2S3 |
| 资助项目 | Hong Kong Scholars Program[XJ2019022] ; Fundamental Research Funds for the Central Universities[WK2060000032] ; National Natural Science Foundation[51772283] ; National Natural Science Foundation[21972145] ; National Natural Science Foundation[51872249] ; General Research Fund (GRF)[11307619] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000654873300001 |
| 出版者 | TSINGHUA UNIV PRESS |
| 资助机构 | Hong Kong Scholars Program ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation ; General Research Fund (GRF) |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122659]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Wenjun; Chen, Qianwang |
| 作者单位 | 1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.City Univ Hong Kong, Ctr Super Diamond & Adv Films, Dept Mat Sci & Engn, Kowloon, Hong Kong 999077, Peoples R China 3.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Mat Sci & Engn, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui High Magnet Field Lab, Hefei 230031, Peoples R China 5.Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, 21 Nanyang Link, Singapore 637371, Singapore |
| 推荐引用方式 GB/T 7714 | Wang, Changlai,Lu, Jian,Tong, Huigang,et al. Structural engineering of sulfur-doped carbon encapsulated bismuth sulfide core-shell structure for enhanced potassium storage performance[J]. NANO RESEARCH,2021. |
| APA | Wang, Changlai.,Lu, Jian.,Tong, Huigang.,Wu, Shuilin.,Wang, Dongdong.,...&Chen, Qianwang.(2021).Structural engineering of sulfur-doped carbon encapsulated bismuth sulfide core-shell structure for enhanced potassium storage performance.NANO RESEARCH. |
| MLA | Wang, Changlai,et al."Structural engineering of sulfur-doped carbon encapsulated bismuth sulfide core-shell structure for enhanced potassium storage performance".NANO RESEARCH (2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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