Atomically dispersed Sn incorporated into carbon matrix for stable electrochemical lithium storage
文献类型：期刊论文
| 作者 | Li, Qiongguang1,2; Yuan, Menglei1,2; Ji, Yongjun3; Chen, Xiao4; Wang, Yanhong2; Gao, Xingyue1,8; Li, Huifang2; He, Hongyan2; Chen, Han5; Tan, Qiangqiang2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 437页码:10 |
| 关键词 | Single atom Sn Cyclability Lithium storage mechanism Anode Lithium-ion batteries |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2022.135340 |
| 英文摘要 | Although possessing a high specific capacity, the practical implementation of SnO2 nanoparticles as a promising anode for lithium-ion batteries (LIBs) is hampered by their poor cyclability. This work demonstrates that incorporating single atomic Sn (SASn) species into a carbon matrix can address this issue effectively. The SASn/C composite was synthesized via polymerization of formaldehyde and 3-aminophenol in the presence of Tin(II) chloride, followed by pyrolysis. The SASn atoms were homogeneously dispersed in the carbon matrix. Each Sn atom coordinated with two O and two C atoms, forming the Sn-O-C and Sn-C bonds, providing channels for fast electron/ion transfer and boosting electrochemical kinetics. The SASn/C anode exhibited unique lithium storage behaviors, enhanced lithium storage capability, and excellent cyclic stability with a capacity fading rate of 0.0031% per cycle at 1000 mA g(-1) after 7000 cycles. Density functional theory calculations reveal that one SASn atom can adsorb three Li+ ions at the fully discharged state during the discharging process. Subsequently, the Li+ ions are directly desorbed from the SASn atom, which is different from the traditional multi-step de-alloying process. This facile strategy represents a significant advancement in developing high-performance Sn-based anode materials for LIBs. |
| WOS关键词 | HIGH-PERFORMANCE LITHIUM ; DOPED POROUS CARBON ; LAYER DEPOSITION ; ANODE MATERIALS ; ION BATTERIES ; CORE-SHELL ; NANOTUBES ; COMPOSITE ; NANOCRYSTALS ; NANOPARTICLES |
| 资助项目 | National Natural Science Foundation of China[51772295] ; National Natural Science Foundation of China[51972108] ; National Natural Science Foundation of China[2020LKSFG09A] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000778755400001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/52843]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Yanhong; Chen, Han; Su, Fabing |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Beijing Technol & Business Univ, Sch Light Ind, Beijing 100048, Peoples R China 4.Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Green Chem React Engn & Technol, Beijing 100084, Peoples R China 5.Changsha Univ, Hunan Key Lab Appl Environm Photocatalysis, Changsha 410022, Peoples R China 6.Guangdong Technion Israel Inst Technol GTIIT, Dept Chem Engn, Shantou 515063, Peoples R China 7.Technion Israel Inst Technol IIT, IL-32000 Haifa, Israel 8.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qiongguang,Yuan, Menglei,Ji, Yongjun,et al. Atomically dispersed Sn incorporated into carbon matrix for stable electrochemical lithium storage[J]. CHEMICAL ENGINEERING JOURNAL,2022,437:10. |
| APA | Li, Qiongguang.,Yuan, Menglei.,Ji, Yongjun.,Chen, Xiao.,Wang, Yanhong.,...&Su, Fabing.(2022).Atomically dispersed Sn incorporated into carbon matrix for stable electrochemical lithium storage.CHEMICAL ENGINEERING JOURNAL,437,10. |
| MLA | Li, Qiongguang,et al."Atomically dispersed Sn incorporated into carbon matrix for stable electrochemical lithium storage".CHEMICAL ENGINEERING JOURNAL 437(2022):10. |
入库方式： OAI收割
来源：过程工程研究所
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