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DOI | 10.1038/ncomms14719 |
Nickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries | |
Yan, Zichao1; Xiao, Jin2; Lai, Weihong1; Wang, Li1; Gebert, Florian1; Wang, Yunxiao1; Gu, Qinfen3; Liu, Hui4; Chou, Shu-Lei1; Liu, Huakun1; Dou, Shi-Xue1 | |
2019-10-22 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; Peoples R China |
英文摘要 | Polysulfide dissolution and slow electrochemical kinetics of conversion reactions lead to low utilization of sulfur cathodes that inhibits further development of room-temperature sodium-sulfur batteries. Here we report a multifunctional sulfur host, NiS2 nanocrystals implanted in nitrogen-doped porous carbon nanotubes, which is rationally designed to achieve high polysulfide immobilization and conversion. Attributable to the synergetic effect of physical confinement and chemical bonding, the high electronic conductivity of the matrix, closed porous structure, and polarized additives of the multifunctional sulfur host effectively immobilize polysulfides. Significantly, the electrocatalytic behaviors of the Lewis base matrix and the NiS2 component are clearly evidenced by operando synchrotron X-ray diffraction and density functional theory with strong adsorption of polysulfides and high conversion of soluble polysulfides into insoluble Na2S2/Na2S. Thus, the as-obtained sulfur cathodes exhibit excellent performance in room-temperature Na/S batteries. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000491306200001 |
WOS关键词 | SINGLE-ATOM ; ION BATTERIES ; PERFORMANCE ; CHALLENGES ; CATHODES ; SURFACE ; HOST |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203255 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2500, Australia; 2.Hunan Univ Technol, Sch Sci, Zhuzhou 412007, Peoples R China; 3.Australian Synchrotron, 800 Blackburn Rd, Clayton, Vic 3168, Australia; 4.Tianjin Univ, Sch Mat Sci & Engn, Inst New Energy Mat, Tianjin 300072, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Zichao,Xiao, Jin,Lai, Weihong,et al. Nickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries[J]. NATURE COMMUNICATIONS,2019,10. |
APA | Yan, Zichao.,Xiao, Jin.,Lai, Weihong.,Wang, Li.,Gebert, Florian.,...&Dou, Shi-Xue.(2019).Nickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries.NATURE COMMUNICATIONS,10. |
MLA | Yan, Zichao,et al."Nickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries".NATURE COMMUNICATIONS 10(2019). |
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