Modulating the electrochemical performances of layered cathode materials for sodium ion batteries through tuning coulombic repulsion between negatively charged tmo2 slabs
文献类型：期刊论文
| 作者 | Li, Zheng-Yao1; Wang, Huibo2; Yang, Wenyun3; Yang, Jinbo3; Zheng, Lirong4; Chen, Dongfeng1; Sun, Kai1; Han, Songbai1; Liu, Xiangfeng2 |
| 刊名 | Acs applied materials & interfaces
 |
| 出版日期 | 2018-01-17 |
| 卷号 | 10期号:2页码:1707-1718 |
| 关键词 | Layered oxides Coulombic repulsion Neutron diffraction Cathode materials Sodium ion batteries |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.7b15590 |
| 通讯作者 | Han, songbai(hansb@ciae.ac.cn) ; Liu, xiangfeng(liuxf@ucas.ac.cn) |
| 英文摘要 | Exploiting advanced layered transition metal oxide cathode materials is of great importance to rechargeable sodium batteries. layered oxides are composed of negatively charged tmo2 slabs (tm = transition metal) separated by na+ diffusion layers. herein, we propose a novel insight, for the first time, to control the electrochemical properties by tuning coulombic repulsion between negatively charged tmo2 slabs. coulombic repulsion can finely tailor the d-spacing of na ion layers and material structural stability, which can be achieved by employing na+ cations to serve as effective shielding layers between tmo2 layers. a series of o3-type naxmn1/3fe1/3cu1/6mg1/6o2 (x = 1.0, 0.9, 0.8, and 0.7) have been prepared, and na0.7mn1/3fe1/3cu1/6mg1/6o2 shows the largest coulombic repulsion between tmo2 layers, the largest space for na ion diffusion, the best structural stability, and also the longest na-o chemical bond with weaker coulombic attraction, thus leading to the best electrochemical performance. meanwhile, the thermal stability depends on the na concentration in pristine materials. ex situ x-ray absorption (xas) analysis indicates that mn, fe, and cu ions are all electrochemically active components during insertion and extraction of sodium ion. this study enables some new insights to promote the development of advanced layered naxtmo(2) materials for rechargeable sodium batteries in the future. |
| WOS关键词 | TRANSITION-METAL OXIDES ; ENERGY-STORAGE ; STRUCTURAL EVOLUTION ; HIGH-CAPACITY ; HIGH-POWER ; P2-TYPE ; INTERCALATION ; SUBSTITUTION ; INSIGHTS ; ELEMENTS |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000423140400028 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177918 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Han, Songbai; Liu, Xiangfeng |
| 作者单位 | 1.China Inst Atom Energy, Dept Nucl Phys, Neutron Scattering Lab, Beijing 102413, Peoples R China 2.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China 3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zheng-Yao,Wang, Huibo,Yang, Wenyun,et al. Modulating the electrochemical performances of layered cathode materials for sodium ion batteries through tuning coulombic repulsion between negatively charged tmo2 slabs[J]. Acs applied materials & interfaces,2018,10(2):1707-1718. |
| APA | Li, Zheng-Yao.,Wang, Huibo.,Yang, Wenyun.,Yang, Jinbo.,Zheng, Lirong.,...&Liu, Xiangfeng.(2018).Modulating the electrochemical performances of layered cathode materials for sodium ion batteries through tuning coulombic repulsion between negatively charged tmo2 slabs.Acs applied materials & interfaces,10(2),1707-1718. |
| MLA | Li, Zheng-Yao,et al."Modulating the electrochemical performances of layered cathode materials for sodium ion batteries through tuning coulombic repulsion between negatively charged tmo2 slabs".Acs applied materials & interfaces 10.2(2018):1707-1718. |
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