The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance

被引:13
作者
Ding, Yanhong [1 ]
Lin, Rongpeng [1 ]
Xiong, Shuicheng [1 ]
Zhu, Yirong [1 ]
Yu, Meng [1 ]
Duan, Xiaobo [2 ]
机构
[1] Hunan Univ Technol, Coll Mat & Adv Mfg, Zhuzhou 412008, Peoples R China
[2] GEM Co Ltd, Shenzhen 518101, Peoples R China
关键词
copper sulfide; supercapacitor; specific capacity; hydrothermal method; morphology; CAPACITANCE; ARRAYS;
D O I
10.3390/molecules28062487
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In this work, CuS, Cu7S4, Cu9S5, Cu7.2S4, and Cu2S with the same morphology were successfully synthesized by the hydrothermal method. According to the calculation, their galvanostatic charge-discharge (GCD) curves were 43.29 (CuS), 86.3 (Cu7S4), 154 (Cu9S5), 185.4 (Cu7.2S4), and 206.9 F/g (Cu2S) at the current density of 1 A/g. The results showed that the energy storage capacity of copper sulfide with the same morphology increased with the increase of the copper sulfide stoichiometric coefficient. At the second part of this work, the agglomerated cuprous sulfide and the microporous cuprous sulfide were successfully prepared, respectively. In addition, the porous spherical cuprous sulfide was annealed to get nano cuprous sulfide. It is found that the specific capacity of the agglomerated structure is the highest, which had reached 206.9 F/g at the current density of 1 A/g, and 547.9 F/g at the current density of 10 A/g after activation.
引用
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页数:16
相关论文
共 28 条
[21]  
[汪翔 Wang Xiang], 2017, [材料科学与工程学报, Journal of Materials Science and Engineering], V35, P542
[22]  
Wang Zhi-gong, 2012, Chinese Journal of Nonferrous Metals, V22, P416
[23]   Synthesis of Free-Standing Metal Sulfide Nanoarrays via Anion Exchange Reaction and Their Electrochemical Energy Storage Application [J].
Xia, Xinhui ;
Zhu, Changrong ;
Luo, Jingshan ;
Zeng, Zhiyuan ;
Guan, Cao ;
Ng, Chin Fan ;
Zhang, Hua ;
Fan, Hong Jin .
SMALL, 2014, 10 (04) :766-773
[24]   Effects of functional groups and anion size on the charging mechanisms in layered electrode materials [J].
Xu, Kui ;
Merlet, Celine ;
Lin, Zifeng ;
Shao, Hui ;
Taberna, Pierre-Louis ;
Miao, Ling ;
Jiang, Jianjun ;
Zhu, Jixin ;
Simon, Patrice .
ENERGY STORAGE MATERIALS, 2020, 33 :460-469
[25]   Synthesis of porous Cu7.2S4 sub-microspheres by an ion exchange method for high-performance supercapacitors [J].
Zhou, Kaiyuan ;
Liang, Jicai ;
Liu, Jiaang ;
Sun, Peng ;
Bu, Jianguo ;
Zhang, Wanxi ;
Chen, Guangyi .
RSC ADVANCES, 2016, 6 (20) :16832-16837
[26]   Supercapacitors Based on Three-Dimensional Hierarchical Graphene Aerogels with Periodic Macropores [J].
Zhu, Cheng ;
Liu, Tianyu ;
Qian, Fang ;
Han, T. Yong-Jin ;
Duoss, Eric B. ;
Kuntz, Joshua D. ;
Spadaccini, Christopher M. ;
Worsley, Marcus A. ;
Li, Yat .
NANO LETTERS, 2016, 16 (06) :3448-3456
[27]   Arrays of ultrafine CuS nanoneedles supported on a CNT backbone for application in supercapacitors [J].
Zhu, Ting ;
Xia, Baoyu ;
Zhou, Liang ;
Lou, Xiong Wen .
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (16) :7851-7855
[28]   Surface-enhanced Raman scattering by hierarchical CuS microflowers: Charge transfer and electromagnetic enhancement [J].
Zou, Yanqiu ;
Jiang, Li ;
Zhai, Tengfei ;
You, Tingting ;
Jing, Xufeng ;
Liu, Rongyang ;
Li, Fanghao ;
Zhou, Wei ;
Jin, Shangzhong .
JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 865