The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance
In this work, CuS, Cu<sub>7</sub>S<sub>4</sub>, Cu<sub>9</sub>S<sub>5</sub>, Cu<sub>7.2</sub>S<sub>4,</sub> and Cu<sub>2</sub>S with the same morphology were successfully synthesized by the hydrothermal method. Accor...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/6/2487 |
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| author | Yanhong Ding Rongpeng Lin Shuicheng Xiong Yirong Zhu Meng Yu Xiaobo Duan |
| author_facet | Yanhong Ding Rongpeng Lin Shuicheng Xiong Yirong Zhu Meng Yu Xiaobo Duan |
| author_sort | Yanhong Ding |
| collection | DOAJ |
| description | In this work, CuS, Cu<sub>7</sub>S<sub>4</sub>, Cu<sub>9</sub>S<sub>5</sub>, Cu<sub>7.2</sub>S<sub>4,</sub> and Cu<sub>2</sub>S 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 (Cu<sub>7</sub>S<sub>4</sub>), 154 (Cu<sub>9</sub>S<sub>5</sub>), 185.4 (Cu<sub>7.2</sub>S<sub>4</sub>), and 206.9 F/g (Cu<sub>2</sub>S) 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. |
| first_indexed | 2024-03-11T06:08:28Z |
| format | Article |
| id | doaj.art-9387cfc6f49042b8bc70ac3331f417b2 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T06:08:28Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-9387cfc6f49042b8bc70ac3331f417b22023-11-17T12:51:06ZengMDPI AGMolecules1420-30492023-03-01286248710.3390/molecules28062487The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical PerformanceYanhong Ding0Rongpeng Lin1Shuicheng Xiong2Yirong Zhu3Meng Yu4Xiaobo Duan5College of Materials and Advanced Manufacturing, Hunan University of Technology, Zhuzhou 412008, ChinaCollege of Materials and Advanced Manufacturing, Hunan University of Technology, Zhuzhou 412008, ChinaCollege of Materials and Advanced Manufacturing, Hunan University of Technology, Zhuzhou 412008, ChinaCollege of Materials and Advanced Manufacturing, Hunan University of Technology, Zhuzhou 412008, ChinaCollege of Materials and Advanced Manufacturing, Hunan University of Technology, Zhuzhou 412008, ChinaGEM Co., Ltd., Shenzhen 518101, ChinaIn this work, CuS, Cu<sub>7</sub>S<sub>4</sub>, Cu<sub>9</sub>S<sub>5</sub>, Cu<sub>7.2</sub>S<sub>4,</sub> and Cu<sub>2</sub>S 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 (Cu<sub>7</sub>S<sub>4</sub>), 154 (Cu<sub>9</sub>S<sub>5</sub>), 185.4 (Cu<sub>7.2</sub>S<sub>4</sub>), and 206.9 F/g (Cu<sub>2</sub>S) 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.https://www.mdpi.com/1420-3049/28/6/2487copper sulfidesupercapacitorspecific capacityhydrothermal methodmorphology |
| spellingShingle | Yanhong Ding Rongpeng Lin Shuicheng Xiong Yirong Zhu Meng Yu Xiaobo Duan The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance Molecules copper sulfide supercapacitor specific capacity hydrothermal method morphology |
| title | The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance |
| title_full | The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance |
| title_fullStr | The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance |
| title_full_unstemmed | The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance |
| title_short | The Effect of Copper Sulfide Stoichiometric Coefficient and Morphology on Electrochemical Performance |
| title_sort | effect of copper sulfide stoichiometric coefficient and morphology on electrochemical performance |
| topic | copper sulfide supercapacitor specific capacity hydrothermal method morphology |
| url | https://www.mdpi.com/1420-3049/28/6/2487 |
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