Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark Machining
Transition metal oxides, distinguished by their high theoretical specific capacitance values, inexpensive cost, and low toxicity, have been extensively utilized as electrode materials for high-performance supercapacitors. Nevertheless, their conductivity is generally insufficient to facilitate rapid...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/2072-666X/16/1/7 |
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| author | Ri Chen Siqi Lv Yunying Xu Zicong Lin Guoying Zhang Jian Wang Bocheng Wang Wenxia Wang Igor Zhitomirsky Yong Yang |
| author_facet | Ri Chen Siqi Lv Yunying Xu Zicong Lin Guoying Zhang Jian Wang Bocheng Wang Wenxia Wang Igor Zhitomirsky Yong Yang |
| author_sort | Ri Chen |
| collection | DOAJ |
| description | Transition metal oxides, distinguished by their high theoretical specific capacitance values, inexpensive cost, and low toxicity, have been extensively utilized as electrode materials for high-performance supercapacitors. Nevertheless, their conductivity is generally insufficient to facilitate rapid electron transport at high rates. Therefore, research on bimetallic oxide electrode materials has become a hot spot, especially in the field of micro-supercapacitors (MSC). Hence, this study presents the preparation of bimetallic oxide electrode materials via electro-spark machining (EM), which is efficient, convenient, green and non-polluting, as well as customizable. The fabricated copper-molybdenum bimetallic oxide (MoCuO<sub>x</sub>) device showed good electrochemical performance under the electrode system. It provided a high areal capacity of 50.2 mF cm<sup>−2</sup> (scan rate: 2 mV s<sup>−1</sup>) with outstanding cycling retention of 94.9% even after 2000 cycles. This work opens a new window for fabricating bimetallic oxide materials in an efficient, environmental and customizable way for various electronics applications. |
| format | Article |
| id | doaj-art-74e98f5495ca4dc982d348f7b013f5da |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-74e98f5495ca4dc982d348f7b013f5da2025-01-24T13:41:49ZengMDPI AGMicromachines2072-666X2024-12-01161710.3390/mi16010007Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark MachiningRi Chen0Siqi Lv1Yunying Xu2Zicong Lin3Guoying Zhang4Jian Wang5Bocheng Wang6Wenxia Wang7Igor Zhitomirsky8Yong Yang9Department of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaDepartment of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaSchool of Education, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaDepartment of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaDepartment of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaDepartment of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaDepartment of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaDepartment of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Materials Science and Engineering, McMaster University, Hamilton, ON L8S 4L7, CanadaDepartment of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, ChinaTransition metal oxides, distinguished by their high theoretical specific capacitance values, inexpensive cost, and low toxicity, have been extensively utilized as electrode materials for high-performance supercapacitors. Nevertheless, their conductivity is generally insufficient to facilitate rapid electron transport at high rates. Therefore, research on bimetallic oxide electrode materials has become a hot spot, especially in the field of micro-supercapacitors (MSC). Hence, this study presents the preparation of bimetallic oxide electrode materials via electro-spark machining (EM), which is efficient, convenient, green and non-polluting, as well as customizable. The fabricated copper-molybdenum bimetallic oxide (MoCuO<sub>x</sub>) device showed good electrochemical performance under the electrode system. It provided a high areal capacity of 50.2 mF cm<sup>−2</sup> (scan rate: 2 mV s<sup>−1</sup>) with outstanding cycling retention of 94.9% even after 2000 cycles. This work opens a new window for fabricating bimetallic oxide materials in an efficient, environmental and customizable way for various electronics applications.https://www.mdpi.com/2072-666X/16/1/7bimetallic oxides electrodeelectro-spark machining (EM)copper-molybdenum bimetallic oxide (MoCuO<sub>x</sub>)micro-supercapacitor (MSC) |
| spellingShingle | Ri Chen Siqi Lv Yunying Xu Zicong Lin Guoying Zhang Jian Wang Bocheng Wang Wenxia Wang Igor Zhitomirsky Yong Yang Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark Machining Micromachines bimetallic oxides electrode electro-spark machining (EM) copper-molybdenum bimetallic oxide (MoCuO<sub>x</sub>) micro-supercapacitor (MSC) |
| title | Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark Machining |
| title_full | Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark Machining |
| title_fullStr | Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark Machining |
| title_full_unstemmed | Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark Machining |
| title_short | Design and Fabrication of MoCuO<sub>x</sub> Bimetallic Oxide Electrodes for High-Performance Micro-Supercapacitor by Electro-Spark Machining |
| title_sort | design and fabrication of mocuo sub x sub bimetallic oxide electrodes for high performance micro supercapacitor by electro spark machining |
| topic | bimetallic oxides electrode electro-spark machining (EM) copper-molybdenum bimetallic oxide (MoCuO<sub>x</sub>) micro-supercapacitor (MSC) |
| url | https://www.mdpi.com/2072-666X/16/1/7 |
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