Strain buffering effect of quasi- amorphous disordered microstructure enabling long- term fast sodium storage performance
文献类型：期刊论文
| 作者 | He, Qiming; Zhang, Sanpei; Wu, Xiangwei; Yang, Jianhua; Wen, Zhaoyin |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2019-01-14 |
| 卷号 | 7期号:2页码:574 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c8ta09172b |
| 文献子类 | Article |
| 英文摘要 | Volume expansion during the discharging and charging processes is still a challenge for high-capacity electrode materials. The direct design of active materials with high surface area can overcome this challenge, but would inevitably decrease the volumetric energy density. Herein, a quasi-amorphous disordered microstructure of MoS2, combined with a conductive matrix, was designed to improve the cyclability and high rate performance. The hybrid electrode materials with optimized architecture have shown the buffering effect of the loosened structure and the enhanced conductivity. Moreover, this special structure has favoured pseudocapacitive charge storage behaviour, further contributing to the excellent electrochemical performance. As expected, after 3000 cycles, the reversible capacities remained as high as 322mA h g(-1) (1 A g(-1)) and 281.6 mA h g(-1) (2 A g(-1)), both presenting low cyclic fading rates of 0.01% per cycle. After 1000 cycles at 6 A g(-1), a capacity of 226.7 mA h g(-1) was achieved. Even at an extremely high current density of 45 A g(-1), it could still deliver a high capacity of 257.7 mA h g(-1). We anticipate that suitable structure modulations might be applied to other electrode materials to meet the optimal electrochemical reaction and kinetic requirements. |
| 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/331005/27399]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | He, Qiming,Zhang, Sanpei,Wu, Xiangwei,et al. Strain buffering effect of quasi- amorphous disordered microstructure enabling long- term fast sodium storage performance[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(2):574. |
| APA | He, Qiming,Zhang, Sanpei,Wu, Xiangwei,Yang, Jianhua,&Wen, Zhaoyin.(2019).Strain buffering effect of quasi- amorphous disordered microstructure enabling long- term fast sodium storage performance.JOURNAL OF MATERIALS CHEMISTRY A,7(2),574. |
| MLA | He, Qiming,et al."Strain buffering effect of quasi- amorphous disordered microstructure enabling long- term fast sodium storage performance".JOURNAL OF MATERIALS CHEMISTRY A 7.2(2019):574. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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