P2-layered Na0.5Li0.07Mn0.61Co0.16Ni0.16O2cathode boosted Na-storage propertiesviarational sub-group element doping
文献类型：期刊论文
| 作者 | Dai, Dongmei2; Qiu, Jinxu2,3; Hou, Hongying3; Wang, Xiaojuan2; Li, Siyuan4; Cao, Bobo2; Zhou, Xinxin2; Liu, Dai-Huo2; Wang, Bao1; Li, Bao2 |
| 刊名 | Journal of Materials Chemistry A
 |
| 出版日期 | 2021-09-14 |
| 卷号 | 9期号:34页码:18272-18279 |
| 关键词 | Digital storage - Metals - Metal ions - Sodium-ion batteries - Redox reactions - Stability - Rietveld refinement - X ray powder diffraction |
| ISSN号 | 20507488 |
| DOI | 10.1039/d1ta03238k |
| 英文摘要 | P2-layered metal oxide cathodes exhibit great promise for use in sodium ion batteries due to their unique two-dimensional tunnel structure, high energy density and high redox potential,etc.However, the inferior structural stability and irreversible phase change of P2-layered cathodes inhibit their development. The best effective strategies to improve their structural stability and sodium storage properties areviathe optimization of the P2-layered tunnel structure and morphology by adjusting the Na+contents, lithium substitution and rational element doping. Herein, the first sub-group element (Cu2+, Ag+and Au+) doped Na0.5Li0.07Mn0.61Co0.16Ni0.16O2cathodes were successfully prepared and systematically studied using operando X-ray powder diffraction (XRD), Rietveld refinement with corresponding Fourier electron cloud maps and the galvanostatic intermittent titration technique (GITT). These data indicate that the lattice parameters (a/b,candV), energy barrier, and Na+diffraction coefficient of sub-group element-doped Na0.5Li0.07Mn0.61Co0.16Ni0.16O2cathodes are gradually improved in line with an increase in the sub-group element radii, which facilitate the kinetics of Na+migration due to the synergistic effect between the valence and radius. Additionally, the structural stability and sodium storage mechanism of the optimized hybrid Na0.5Li0.07Mn0.6Co0.16Ni0.16Au0.01O2electrode was revealedviaoperando XRD. 漏 The Royal Society of Chemistry 2021. |
| 学科主题 | Cathodes |
| 项目编号 | This work was  ; nancially supported by the National Natural Science Foundation of China (No. 51672071, 51802085, 51772296 and 51902090), 111" Project (D17007) |
| 出版者 | Royal Society of Chemistry |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60358]  |
| 作者单位 | 1.State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 2.Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang; 453007, China 3.Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming; 650093, China 4.Affiliated Middle School of Henan Normal University, Xinxiang; 453007, China |
| 推荐引用方式 GB/T 7714 | Dai, Dongmei,Qiu, Jinxu,Hou, Hongying,et al. P2-layered Na0.5Li0.07Mn0.61Co0.16Ni0.16O2cathode boosted Na-storage propertiesviarational sub-group element doping[J]. Journal of Materials Chemistry A,2021,9(34):18272-18279. |
| APA | Dai, Dongmei.,Qiu, Jinxu.,Hou, Hongying.,Wang, Xiaojuan.,Li, Siyuan.,...&Li, Bao.(2021).P2-layered Na0.5Li0.07Mn0.61Co0.16Ni0.16O2cathode boosted Na-storage propertiesviarational sub-group element doping.Journal of Materials Chemistry A,9(34),18272-18279. |
| MLA | Dai, Dongmei,et al."P2-layered Na0.5Li0.07Mn0.61Co0.16Ni0.16O2cathode boosted Na-storage propertiesviarational sub-group element doping".Journal of Materials Chemistry A 9.34(2021):18272-18279. |
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