Double-layered yolk-shell microspheres with NiCo2S4-Ni9S8-C hetero-interfaces as advanced battery-type electrode for hybrid supercapacitors
文献类型：期刊论文
| 作者 | Yan, Yu4; Li, Anran3; Lu, Chengxing4; Zhai, Tengfei4; Lu, Shanfu2; Li, Weiman1; Zhou, Wei4 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-09-15 |
| 卷号 | 396页码:11 |
| 关键词 | Metal-organic framework Double-layered yolk-shell microspheres NiCo2S4-Ni9S8-C hetero-interfaces Battery-type electrode Hybrid supercapacitor |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2020.125316 |
| 英文摘要 | It requires excellent conductivity, rapid diffusion of electrolyte and high active specific area of active materials to achieve efficient supercapacitor. Herein, the novel NiCo2S4-Ni9S8-C double-layered yolk-shell microspheres (NiCo2S4Ni9S8-C DYMs) were synthesized by using bimetallic metal-organic framework (MOF) as self-template. The microspheres are composed of numerous tiny heterogeneous NiCo2S4-Ni9S8 nanoparticles (similar to 10 nm in size) decorated in amorphous carbon. As expected, the sample exhibits high specific capacity of 293.6 mAh g(-1) at 1 A g(-1), excellent rate capacity (81.1% from 1 A g(-1) to 20 A g(-1)) and good cycling stability (capacity retention of 87.3% over 5000 cycles). The hybrid supercapacitor assembled by NiCo2S4-Ni9S8-C DYMs and grapheme hydrogel, shows an energy density of 51 Wh kg(-1) at a power density of 1399.4 W kg(-1) and even can retain 32.5 Wh kg(-1) at 8004.4 W kg(-1). The density functional theory (DFT) calculation show the hetero-interfaces of NiCo2S4-Ni9S8 can optimize the electronic distribution, coupled with the excellent electroconductivity of dispersed carbon within microspheres, which boost the electrochemical performance. This work provides an approach to fabricate heterogeneous microspheres by MOF route for developing advanced battery-type electrode materials. |
| WOS关键词 | ULTRATHIN NANOSHEETS ; TEMPLATE SYNTHESIS ; HOLLOW SPHERES ; PERFORMANCE ; CARBON ; STORAGE ; ENERGY ; ARRAYS |
| 资助项目 | National Natural Science Foundation of China[51622204] ; National Natural Science Foundation of China[51972011] ; National Natural Science Foundation of China[51902012] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000551969200120 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/41478]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhou, Wei |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China 3.Beihang Univ, Beijing Adv Innovat Ctr Big Data Based Precis Med, Beijing 100191, Peoples R China 4.Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Chem, Beijing 100191, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Yu,Li, Anran,Lu, Chengxing,et al. Double-layered yolk-shell microspheres with NiCo2S4-Ni9S8-C hetero-interfaces as advanced battery-type electrode for hybrid supercapacitors[J]. CHEMICAL ENGINEERING JOURNAL,2020,396:11. |
| APA | Yan, Yu.,Li, Anran.,Lu, Chengxing.,Zhai, Tengfei.,Lu, Shanfu.,...&Zhou, Wei.(2020).Double-layered yolk-shell microspheres with NiCo2S4-Ni9S8-C hetero-interfaces as advanced battery-type electrode for hybrid supercapacitors.CHEMICAL ENGINEERING JOURNAL,396,11. |
| MLA | Yan, Yu,et al."Double-layered yolk-shell microspheres with NiCo2S4-Ni9S8-C hetero-interfaces as advanced battery-type electrode for hybrid supercapacitors".CHEMICAL ENGINEERING JOURNAL 396(2020):11. |
入库方式： OAI收割
来源：过程工程研究所
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