Rational design of high nitrogen-doped and core-shell/mesoporous carbon nanospheres with high rate capability and cycling longevity for pseudocapacitive sodium storage
文献类型：期刊论文
| 作者 | Mao, JY; Niu, DC; Jiang, N; Jiang, GY; Chen, MW; Li, YS; Shi, JL |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2020-05-21 |
| 期号 | 19页码:9768 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/d0ta03229h |
| 文献子类 | Article |
| 英文摘要 | Carbonaceous materials are extensively used as sodium-ion battery (SIB) anodes for their cost-effectiveness, high conductivity and reasonably high capacity. Unfortunately, these anodes suffer from poor rate performances and unsatisfactory lifespan. Herein, the design and construction of high nitrogen-doped, core-shell and intra-core mesoporous structured carbon nanospheres (designated as HN-CSMCNs) for high-rate and stable SIBs is reported. HN-CSMCNs are facilely synthesized by the self-assembly of block copolymer polystyrene-b-poly(acrylic acid), cetyltrimethylammonium bromide and dopamine hydrochloride, and subsequent pyrolysis under an NH3 atmosphere. As an anode for SIBs, HN-CSMCNs exhibit outstanding specific capacity (ca. 251 mA h g(-1) at 0.1 A g(-1)), rate capability (ca. 104 mA h g(-1) at 15 A g(-1)), and more importantly, especially stable cycling properties with a capacity of ca. 153 mA h g(-1) being retained after 20 000 cycles at 10 A g(-1). Electrochemical analysis demonstrates that the core-shell and intra-core mesoporous structures, expanded inter-planar distance and high pyrrolic/pyridinic-N doping of HN-CSMCNs together contribute to the superior sodium storage capability via a pseudocapacitive-dominated electrochemical kinetics, thus leading to superior electrochemical performances for SIBs. |
| WOS关键词 | HIERARCHICALLY POROUS CARBON ; ION BATTERIES ; HIGH-CAPACITY ; ANODE ; LITHIUM ; NANOPARTICLES ; SPECTROSCOPY ; COMPOSITE ; ELECTRODE ; FILM |
| 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/331005/28045]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Mao, JY,Niu, DC,Jiang, N,et al. Rational design of high nitrogen-doped and core-shell/mesoporous carbon nanospheres with high rate capability and cycling longevity for pseudocapacitive sodium storage[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020(19):9768. |
| APA | Mao, JY.,Niu, DC.,Jiang, N.,Jiang, GY.,Chen, MW.,...&Shi, JL.(2020).Rational design of high nitrogen-doped and core-shell/mesoporous carbon nanospheres with high rate capability and cycling longevity for pseudocapacitive sodium storage.JOURNAL OF MATERIALS CHEMISTRY A(19),9768. |
| MLA | Mao, JY,et al."Rational design of high nitrogen-doped and core-shell/mesoporous carbon nanospheres with high rate capability and cycling longevity for pseudocapacitive sodium storage".JOURNAL OF MATERIALS CHEMISTRY A .19(2020):9768. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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