Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage
文献类型：期刊论文
| 作者 | Xu, JJ; Wang, D; Kong, SY; Li, RZ; Hong, ZL; Huang, FQ |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2020-03-21 |
| 期号 | 11页码:5744 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c9ta13602a |
| 文献子类 | Article |
| 英文摘要 | In the search of high-performance anode materials for next-generation Li-ion batteries, more efforts are needed on new structural prototypes. Motivated by the negative thermal expansion effect in a loosely packed crystal structure type, we are intrigued by the possibility of exploiting new anode materials in a suitable phase structure with much-reduced intrinsic volume strain. Herein, we report a new pyrochlore phase anode material, Ce2Sn2O7, which shows atomic Sn confined in a conductive 3D percolating Ce-O framework. Based on the concept of structural openness, pyrochlore Ce2Sn2O7 possesses open structures to tolerate the volume change. Notably, the Ce-O network is quite robust against the charge/discharge process, which accounts for the high structural stability observed in the experiment. Ultimately, Ce2Sn2O7 electrodes achieve a capacity as high as 631.1 mA h g(-1) and excellent cycling stability. This atom-confining strategy of atomic Sn in the conductive 3D percolating Ce-O framework might be exploited as a general strategy for reducing cycling strain in ion-storage materials. |
| WOS关键词 | ANODE MATERIAL ; ION BATTERIES ; LI ; CAPACITY ; LITHIATION ; FLUORIDE ; OXIDES |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28219]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Xu, JJ,Wang, D,Kong, SY,et al. Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020(11):5744. |
| APA | Xu, JJ,Wang, D,Kong, SY,Li, RZ,Hong, ZL,&Huang, FQ.(2020).Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage.JOURNAL OF MATERIALS CHEMISTRY A(11),5744. |
| MLA | Xu, JJ,et al."Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage".JOURNAL OF MATERIALS CHEMISTRY A .11(2020):5744. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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