Zinc Cobalt Sulfide Microspheres as a High-Performance Electrode Material for Supercapacitors
文献类型:期刊论文
作者 | Gao, Xueyan1; Chang, Qin1; Hong, Juan1; Long, Dayang1; Jin, Guizhen2; Xiao, Xuxian1 |
刊名 | CHEMISTRYSELECT |
出版日期 | 2018-12-28 |
卷号 | 3期号:48页码:13751-13758 |
ISSN号 | 2365-6549 |
关键词 | Electrochemistry Microsphere-like Solvothermal Supercapacitors Zn0.76co0.24s |
DOI | 10.1002/slct.201803095 |
英文摘要 | Fast charging/discharging rate, sustained cycle life, and high power density are irreplaceable virtues of supercapacitors (SCs), and these merits can be achieved by selecting suitable active materials and designing the rational microstructure. In this work, zinc cobalt sulfde (ZCS) microspheres have been synthesized by a simple two-step method involving an ethylene glycol (EG) mediated solvothermal approach and subsequent sulfidation treatment. The formation mechanism of the microspheres is also proposed in detail by analyzing the time-dependent SEM observations. Compared to ZCS nanosheets, ZCS microspheres achieve better electrochemical storage performance due to their satisfactory mesoporous feature, conductivity, and effective transport/diffusion paths for ions and electrons. When used as the electrode material of supercapacitor, ZCS microspheres not only obtain a large specific capacitance of 1516 F g(-1) (211 mAh g(-1)) at 1 A g(-1) with good rate capability of 1080 F g(-1) (150 mAh g(-1)) at 10 A g(-1), but also exhibit exceptional cycling stability with a capacitance reduced 6% of the initial specific capacitance at 10 A g(-1) after 4000 cycles. An asymmetric supercapacitor using ZCS microspheres as the cathode and activated carbon (AC) as the anode is assembled, which achieves high specific capacitance (489.3 F g(-1)), energy density (152.9 Wh kg(-1)), and power density (750 W kg(-1)) at 1 A g(-1) with the capacitance retention of 79% at 5 A g(-1) after 2000 cycles. This work illustrates the promising application potential of the ZCS microspheres as the electrode material for electrochemical capacitors. |
WOS关键词 | Binder-free Electrodes ; Lithium-ion Battery ; Facile Synthesis ; Nickel Foam ; Anode Materials ; Charge Storage ; Ni-foam ; Nico2s4 ; Arrays ; Growth |
资助项目 | Science and Technology Plan Project of Hunan Province, China[2015SK20733] |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | WILEY-V C H VERLAG GMBH |
WOS记录号 | WOS:000454534500030 |
资助机构 | Science and Technology Plan Project of Hunan Province, China |
源URL | [http://ir.ipe.ac.cn/handle/122111/27722] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Xiao, Xuxian |
作者单位 | 1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Gao, Xueyan,Chang, Qin,Hong, Juan,et al. Zinc Cobalt Sulfide Microspheres as a High-Performance Electrode Material for Supercapacitors[J]. CHEMISTRYSELECT,2018,3(48):13751-13758. |
APA | Gao, Xueyan,Chang, Qin,Hong, Juan,Long, Dayang,Jin, Guizhen,&Xiao, Xuxian.(2018).Zinc Cobalt Sulfide Microspheres as a High-Performance Electrode Material for Supercapacitors.CHEMISTRYSELECT,3(48),13751-13758. |
MLA | Gao, Xueyan,et al."Zinc Cobalt Sulfide Microspheres as a High-Performance Electrode Material for Supercapacitors".CHEMISTRYSELECT 3.48(2018):13751-13758. |
入库方式: OAI收割
来源:过程工程研究所
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