Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn Doping
Reasonable design of electrode materials is the key to solving the low energy density of the supercapacitors. Transition metal oxide Co<sub>3</sub>O<sub>4</sub> material is commonly used in the field of supercapacitors, but the poor cycle stability limits its practical applic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/21/7344 |
| _version_ | 1797467124797538304 |
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| author | Xingyu Liu Mengdi Wang Xiang Wu |
| author_facet | Xingyu Liu Mengdi Wang Xiang Wu |
| author_sort | Xingyu Liu |
| collection | DOAJ |
| description | Reasonable design of electrode materials is the key to solving the low energy density of the supercapacitors. Transition metal oxide Co<sub>3</sub>O<sub>4</sub> material is commonly used in the field of supercapacitors, but the poor cycle stability limits its practical application. Herein, we report 0.3Mn-Co<sub>3</sub>O<sub>4</sub> nanostructures grown on nickel foam by a facile one-step hydrothermal approach. The morphology of the samples can be regulated by the introduction of different amounts of Mn ions. The specific capacitance reaches 525.5 C/g at 1 A/g. The performance of 0.3Mn-Co<sub>3</sub>O<sub>4</sub> material is significantly improved due to its excellent stability and conductivity, which makes it a suitable electrode material for supercapacitors. A flexible asymmetric device is also fabricated using the sample as the cathode. The assembled capacitor still possesses a desirable cycle stability after charging and discharging of 10,000 times, and its capacitance retention rate can reach 83.71%. |
| first_indexed | 2024-03-09T18:48:14Z |
| format | Article |
| id | doaj.art-b1f1eadf68f644118f523c5a145dd54a |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T18:48:14Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-b1f1eadf68f644118f523c5a145dd54a2023-11-24T06:02:40ZengMDPI AGMolecules1420-30492022-10-012721734410.3390/molecules27217344Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn DopingXingyu Liu0Mengdi Wang1Xiang Wu2School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaSchool of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaSchool of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, ChinaReasonable design of electrode materials is the key to solving the low energy density of the supercapacitors. Transition metal oxide Co<sub>3</sub>O<sub>4</sub> material is commonly used in the field of supercapacitors, but the poor cycle stability limits its practical application. Herein, we report 0.3Mn-Co<sub>3</sub>O<sub>4</sub> nanostructures grown on nickel foam by a facile one-step hydrothermal approach. The morphology of the samples can be regulated by the introduction of different amounts of Mn ions. The specific capacitance reaches 525.5 C/g at 1 A/g. The performance of 0.3Mn-Co<sub>3</sub>O<sub>4</sub> material is significantly improved due to its excellent stability and conductivity, which makes it a suitable electrode material for supercapacitors. A flexible asymmetric device is also fabricated using the sample as the cathode. The assembled capacitor still possesses a desirable cycle stability after charging and discharging of 10,000 times, and its capacitance retention rate can reach 83.71%.https://www.mdpi.com/1420-3049/27/21/7344Mn-dopingCo<sub>3</sub>O<sub>4</sub>supercapacitorenergy densityspecific capacitance |
| spellingShingle | Xingyu Liu Mengdi Wang Xiang Wu Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn Doping Molecules Mn-doping Co<sub>3</sub>O<sub>4</sub> supercapacitor energy density specific capacitance |
| title | Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn Doping |
| title_full | Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn Doping |
| title_fullStr | Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn Doping |
| title_full_unstemmed | Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn Doping |
| title_short | Tailoring Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Electrode Materials by Mn Doping |
| title_sort | tailoring electrochemical performance of co sub 3 sub o sub 4 sub electrode materials by mn doping |
| topic | Mn-doping Co<sub>3</sub>O<sub>4</sub> supercapacitor energy density specific capacitance |
| url | https://www.mdpi.com/1420-3049/27/21/7344 |
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