Ultrathin NiCo2S4@graphene with a core-shell structure as a high performance positive electrode for hybrid supercapacitors
文献类型：期刊论文
| 作者 | Yu, Feng1,2; Chang, Zheng3; Yuan, Xinhai1; Wang, Faxing1; Zhu, Yusong1; Fu, Lijun1; Chen, Yuhui1; Wang, Hongxia2; Wu, Yuping1,4; Li, Weishan4 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
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| 出版日期 | 2018 |
| 卷号 | 6期号:14页码:5856 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c8ta00835c |
| 英文摘要 | NiCo2S4 is a promising material for supercapacitors owing to its merits of high conductivity and activity in redox reactions. However it suffers poor cycling stability due to structural degradation of the electrode through the redox process. Herein we demonstrate a facile method for the synthesis of a NiCo2S4/graphene composite where NiCo2S4 is encapsulated with an ultrathin graphene layer to form a core/shell structure (NiCo2S4@G). Transmission electron microscopy (TEM) indicates that the shell is only 3-5 layers of graphene and the NiCo2S4 particle core has a uniform size of around 5-7 nm. The NiCo2S4@G composite exhibits excellent electrochemical performance with a specific capacitance of 1432 F g(-1) at a current density of 1 A g(-1). A hybrid supercapacitor assembled using the synthesized NiCo2S4@G as a positive electrode and porous carbon as a negative electrode demonstrates a high energy density of 43.4 W h kg(-1) at a power density of 254.3 W kg(-1) in the voltage range 0-1.35 V. After 5000 charge/discharge cycles, the device still retains 83.4% of its initial capacitance. |
| 学科主题 | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000431506600044 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | Financial support from National Materials Genome Project (2016YFB0700600), Distinguished Young Scientists Program of the National Natural Science Foundation of China (51425301, 21374021, 51673096 and U1601214), 1000 Youth Talents Plan of National Natural Science Foundation of China (51773092) and Research Foundation of State Key Lab (ZK201717) is greatly appreciated. ; Financial support from National Materials Genome Project (2016YFB0700600), Distinguished Young Scientists Program of the National Natural Science Foundation of China (51425301, 21374021, 51673096 and U1601214), 1000 Youth Talents Plan of National Natural Science Foundation of China (51773092) and Research Foundation of State Key Lab (ZK201717) is greatly appreciated. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25003]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China 2.Nanjing Tech Univ, Inst Electrochem Energy Storage, Sch Energy Sci & Engn, Nanjing 211816, Jiangsu, Peoples R China 3.Queensland Univ Technol, Fac Sci & Engn, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia 4.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China 5.South China Normal Univ, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Feng,Chang, Zheng,Yuan, Xinhai,et al. Ultrathin NiCo2S4@graphene with a core-shell structure as a high performance positive electrode for hybrid supercapacitors[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(14):5856, 5861. |
| APA | Yu, Feng.,Chang, Zheng.,Yuan, Xinhai.,Wang, Faxing.,Zhu, Yusong.,...&Li, Weishan.(2018).Ultrathin NiCo2S4@graphene with a core-shell structure as a high performance positive electrode for hybrid supercapacitors.JOURNAL OF MATERIALS CHEMISTRY A,6(14),5856. |
| MLA | Yu, Feng,et al."Ultrathin NiCo2S4@graphene with a core-shell structure as a high performance positive electrode for hybrid supercapacitors".JOURNAL OF MATERIALS CHEMISTRY A 6.14(2018):5856. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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