标题
作者
作者:Xu, XJ (Xu, Xijun)[1,2 ]; Liu, J (Liu, Jun)[1,2 ]; Liu, JW (Liu, Jiangwen)[1,2 ]; Ouyang, LZ (Ouyang, Liuzhang)[1,2 ]; Hu, RZ (Hu, Renzong)[1,2 ]; Wang, H (Wang, Hui)[1,2 ]; Yang, LC (Yang, Lichun)[1,2 ]; Zhu, M (Zhu, Min)[1,2 ]
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文献类型:Article
摘要
On account of increasing demand for energy storage devices, sodium-ion batteries (SIBs) with abundant reserve, low cost, and similar electrochemical properties have the potential to partly replace the commercial lithium-ion batteries. In this study, a facile metal-organic framework (MOF)-derived selenidation strategy to synthesize in situ carbon-encapsulated selenides as superior anode for SIBs is rationally designed. These selenides with particular micro-and nanostructured features deliver ultrastable cycling performance at high charge-discharge rate and demonstrate ultraexcellent rate capability. For example, the uniform peapod-like Fe7Se8@C nanorods represent a high specific capacity of 218 mAh g(-1) after 500 cycles at 3 A g(-1) and the porous NiSe@C spheres display a high specific capacity of 160 mAh g(-1) after 2000 cycles at 3 A g(-1). The current simple MOF-derived method could be a promising strategy for boosting the development of new functional inorganic materials for energy storage, catalysis, and sensors.
关键词
作者关键词:carbon-encapsulation; metal selenides; MOF templates; Na-ion batteries; rate capability
作者信息
通讯作者地址:Liu, J; Hu, RZ (通讯作者)
 | South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China. |
| South China Univ Technol, SUNWODA SCUT Joint Lab Adv Energy Storage Technol, Guangzhou 510641, Guangdong, Peoples R China. |
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类别分类
研究方向:Chemistry; Science & Technology - Other Topics; Materials Science; Physics
Web of Science 类别:Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter