Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors | |
Dai, Yan-Hua1; Kong, Ling-Bin1,2; Yan, Kun1; Shi, Ming1; Zhang, Tong1; Luo, Yong-Chun2; Kang, Long2 | |
刊名 | RSC ADVANCES |
2016 | |
卷号 | 6期号:9页码:7633-7642 |
关键词 | Cobalt compounds Crystallinity Current density Electrodes Electrolytes Layered semiconductors Molybdenum compounds Nanoparticles Potassium hydroxide Precipitation (chemical) Redox reactions Sulfur compounds Supercapacitor Synthesis (chemical) Transition metals |
ISSN号 | 2046-2069 |
DOI | 10.1039/c5ra26157k |
英文摘要 | Transition metal sulfides possess multiple oxidation states that enable rich redox reactions for pseudocapacitance, which have been investigated as promising electrode materials for high-performance supercapacitors. The CoMoS4 nanoparticles are successfully synthesized via a facile chemical co-precipitation process followed by calcining at 200 degrees C. The as-prepared CoMoS4 is firstly studied systematically as an electrode material for supercapacitors. Benefiting from the improved electron conductivity, low crystallinity, and effective porous structure, the as-fabricated CoMoS4 exhibits a high specific capacitance of 415 F g(-1) at a current density of 0.5 A g(-1), a superior rate capability of 82.1% retention as the current density increased from 0.5 A g(-1) to 5 A g(-1), and an excellent cycling stability of 100% retention after 10 000 cycles at a current density of 2 A g(-1) in 6 M KOH aqueous electrolyte. Interestingly, the as-prepared CoMoS4 achieves much more outstanding capacitive properties than those of CoS and MoS2, which indicates a synergistic effect of the double metal sulfides on improvement of the electrochemical performance. The findings demonstrate the importance and great potential of CoMoS4 nanoparticles in the development of high-performance energy-storage systems. |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | ROYAL SOC CHEMISTRY |
WOS记录号 | WOS:000369515500092 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.223/handle/2XXMBERH/33830] |
专题 | 材料科学与工程学院 省部共建有色金属先进加工与再利用国家重点实验室 |
通讯作者 | Kong, Ling-Bin |
作者单位 | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Dai, Yan-Hua,Kong, Ling-Bin,Yan, Kun,et al. Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors[J]. RSC ADVANCES,2016,6(9):7633-7642. |
APA | Dai, Yan-Hua.,Kong, Ling-Bin.,Yan, Kun.,Shi, Ming.,Zhang, Tong.,...&Kang, Long.(2016).Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors.RSC ADVANCES,6(9),7633-7642. |
MLA | Dai, Yan-Hua,et al."Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors".RSC ADVANCES 6.9(2016):7633-7642. |
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