Atomically distributed asymmetrical five-coordinated Co-N-5 moieties on N-rich doped C enabling enhanced redox kinetics for advanced Li-S batteries
文献类型：期刊论文
| 作者 | Zhang, Fanchao; Tang, Zihuan; Zhang, Tengfei; Xiao, Hong; Zhuang, Huifeng; Liang, Xiao; Zheng, Lirong ; Gao, Qiuming
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| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2022 |
| 卷号 | 10期号:41页码:22114-22124 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/d2ta05929k |
| 文献子类 | Article |
| 英文摘要 | Lithium-sulfur (Li-S) batteries show great promise to serve as high-energy-density energy storage devices. Nevertheless, the practical applications of Li-S batteries are significantly limited by the shuttle effect and sluggish sulfur redox reaction (SROR) kinetics. Herein, an ingenious urea-mediated pyrolysis strategy is for the first time reported to obtain well-defined atomically distributed asymmetrical five-coordinated Co-N-5 moieties anchored on nitrogen-rich (30.0 at%) doped carbon (CoN5 SA/NC) as a highly efficient SROR electrocatalyst. CoN5 SA/NC with a high atomically distributed Co loading (2.12 wt%) effectively catalyzes the liquid-liquid and liquid-solid conversions of lithium polysulfides greatly accelerating the SROR kinetics. When CoN5 SA/NC is served as a coating layer for the separator, the Li-S battery exhibits outstanding capacity properties (1060 mA h g(-1) at 1C and 922 mA h g(-1) at 2C) and superior cycling stability (ultralow decay of 0.033% per cycle at 3C for 1600 cycles). An ultrahigh areal capacity of 7.25 mA h cm(-2) can be acquired for the CoN5 SA/NC based Li-S battery even with a high sulfur loading of 6.5 mg cm(-2). Obviously, the asymmetrical single-atom site engineering strategy demonstrates great potential for practical applications of advanced metal-S batteries. |
| 电子版国际标准刊号 | 2050-7496 |
| 语种 | 英语 |
| WOS记录号 | WOS:000864131900001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299722]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Fanchao,Tang, Zihuan,Zhang, Tengfei,et al. Atomically distributed asymmetrical five-coordinated Co-N-5 moieties on N-rich doped C enabling enhanced redox kinetics for advanced Li-S batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2022,10(41):22114-22124. |
| APA | Zhang, Fanchao.,Tang, Zihuan.,Zhang, Tengfei.,Xiao, Hong.,Zhuang, Huifeng.,...&Gao, Qiuming.(2022).Atomically distributed asymmetrical five-coordinated Co-N-5 moieties on N-rich doped C enabling enhanced redox kinetics for advanced Li-S batteries.JOURNAL OF MATERIALS CHEMISTRY A,10(41),22114-22124. |
| MLA | Zhang, Fanchao,et al."Atomically distributed asymmetrical five-coordinated Co-N-5 moieties on N-rich doped C enabling enhanced redox kinetics for advanced Li-S batteries".JOURNAL OF MATERIALS CHEMISTRY A 10.41(2022):22114-22124. |
入库方式： OAI收割
来源：高能物理研究所
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