Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy Storage
Herein, nickel–cobalt sulfide (NCS) nanoflakes covering the surface of Cu(OH)<sub>2</sub> nanorods were achieved by a facile two-step electrodeposition strategy. The effect of CH<sub>4</sub>N<sub>2</sub>S concentration on formation mechanism and electrochemical be...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/1/125 |
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| author | Sa Lv Wenshi Shang Yaodan Chi Huan Wang Xuefeng Chu Boqi Wu Peiyu Geng Chao Wang Jia Yang Zhifei Cheng Xiaotian Yang |
| author_facet | Sa Lv Wenshi Shang Yaodan Chi Huan Wang Xuefeng Chu Boqi Wu Peiyu Geng Chao Wang Jia Yang Zhifei Cheng Xiaotian Yang |
| author_sort | Sa Lv |
| collection | DOAJ |
| description | Herein, nickel–cobalt sulfide (NCS) nanoflakes covering the surface of Cu(OH)<sub>2</sub> nanorods were achieved by a facile two-step electrodeposition strategy. The effect of CH<sub>4</sub>N<sub>2</sub>S concentration on formation mechanism and electrochemical behavior is investigated and optimized. Thanks to the synergistic effect of the selected composite components, the Cu(OH)<sub>2</sub>/NCS composite electrode can deliver a high areal specific capacitance (<i>C</i>s) of 7.80 F cm<sup>−2</sup> at 2 mA cm<sup>−2</sup> and sustain 5.74 F cm<sup>−2</sup> at 40 mA cm<sup>−2</sup>. In addition, coulombic efficiency was up to 84.30% and cyclic stability remained 82.93% within 5000 cycles at 40 mA cm<sup>−2</sup>. This innovative work provides an effective strategy for the design and construction of hierarchical composite electrodes for the development of energy storage devices. |
| first_indexed | 2024-03-09T11:40:45Z |
| format | Article |
| id | doaj.art-ec5cdf725f7148beb4e003a515a589ad |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T11:40:45Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-ec5cdf725f7148beb4e003a515a589ad2023-11-30T23:33:33ZengMDPI AGMicromachines2072-666X2023-01-0114112510.3390/mi14010125Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy StorageSa Lv0Wenshi Shang1Yaodan Chi2Huan Wang3Xuefeng Chu4Boqi Wu5Peiyu Geng6Chao Wang7Jia Yang8Zhifei Cheng9Xiaotian Yang10Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, ChinaHerein, nickel–cobalt sulfide (NCS) nanoflakes covering the surface of Cu(OH)<sub>2</sub> nanorods were achieved by a facile two-step electrodeposition strategy. The effect of CH<sub>4</sub>N<sub>2</sub>S concentration on formation mechanism and electrochemical behavior is investigated and optimized. Thanks to the synergistic effect of the selected composite components, the Cu(OH)<sub>2</sub>/NCS composite electrode can deliver a high areal specific capacitance (<i>C</i>s) of 7.80 F cm<sup>−2</sup> at 2 mA cm<sup>−2</sup> and sustain 5.74 F cm<sup>−2</sup> at 40 mA cm<sup>−2</sup>. In addition, coulombic efficiency was up to 84.30% and cyclic stability remained 82.93% within 5000 cycles at 40 mA cm<sup>−2</sup>. This innovative work provides an effective strategy for the design and construction of hierarchical composite electrodes for the development of energy storage devices.https://www.mdpi.com/2072-666X/14/1/125hierarchical structurecopper foamelectrodepositionelectrochemical energy storage |
| spellingShingle | Sa Lv Wenshi Shang Yaodan Chi Huan Wang Xuefeng Chu Boqi Wu Peiyu Geng Chao Wang Jia Yang Zhifei Cheng Xiaotian Yang Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy Storage Micromachines hierarchical structure copper foam electrodeposition electrochemical energy storage |
| title | Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy Storage |
| title_full | Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy Storage |
| title_fullStr | Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy Storage |
| title_full_unstemmed | Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy Storage |
| title_short | Achieving Self-Supported Hierarchical Cu(OH)<sub>2</sub>/Nickel–Cobalt Sulfide Electrode for Electrochemical Energy Storage |
| title_sort | achieving self supported hierarchical cu oh sub 2 sub nickel cobalt sulfide electrode for electrochemical energy storage |
| topic | hierarchical structure copper foam electrodeposition electrochemical energy storage |
| url | https://www.mdpi.com/2072-666X/14/1/125 |
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