A Review on the Application of Cobalt-Based Nanomaterials in Supercapacitors
Among many electrode materials, cobalt-based nanomaterials are widely used in supercapacitors because of their high natural abundance, good electrical conductivity, and high specific capacitance. However, there are still some difficulties to overcome, including poor structural stability and low powe...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/22/4065 |
| _version_ | 1797464386983428096 |
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| author | Lin Yang Qinghan Zhu Ke Yang Xinkai Xu Jingchun Huang Hongfeng Chen Haiwang Wang |
| author_facet | Lin Yang Qinghan Zhu Ke Yang Xinkai Xu Jingchun Huang Hongfeng Chen Haiwang Wang |
| author_sort | Lin Yang |
| collection | DOAJ |
| description | Among many electrode materials, cobalt-based nanomaterials are widely used in supercapacitors because of their high natural abundance, good electrical conductivity, and high specific capacitance. However, there are still some difficulties to overcome, including poor structural stability and low power density. This paper summarizes the research progress of cobalt-based nanomaterials (cobalt oxide, cobalt hydroxide, cobalt-containing ternary metal oxides, etc.) as electrode materials for supercapacitors in recent years and discusses the preparation methods and properties of the materials. Notably, the focus of this paper is on the strategies to improve the electrochemical properties of these materials. We show that the performance of cobalt-based nanomaterials can be improved by designing their morphologies and, among the many morphologies, the mesoporous structure plays a major role. This is because mesoporous structures can mitigate volume changes and improve the performance of pseudo capacitance. This review is dedicated to the study of several cobalt-based nanomaterials in supercapacitors, and we hope that future scholars will make new breakthroughs in morphology design. |
| first_indexed | 2024-03-09T18:06:24Z |
| format | Article |
| id | doaj.art-d5b812a777c6433393cea8ef56a14640 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T18:06:24Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-d5b812a777c6433393cea8ef56a146402023-11-24T09:29:05ZengMDPI AGNanomaterials2079-49912022-11-011222406510.3390/nano12224065A Review on the Application of Cobalt-Based Nanomaterials in SupercapacitorsLin Yang0Qinghan Zhu1Ke Yang2Xinkai Xu3Jingchun Huang4Hongfeng Chen5Haiwang Wang6A Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaA Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaA Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaA Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaA Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaA Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaA Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaAmong many electrode materials, cobalt-based nanomaterials are widely used in supercapacitors because of their high natural abundance, good electrical conductivity, and high specific capacitance. However, there are still some difficulties to overcome, including poor structural stability and low power density. This paper summarizes the research progress of cobalt-based nanomaterials (cobalt oxide, cobalt hydroxide, cobalt-containing ternary metal oxides, etc.) as electrode materials for supercapacitors in recent years and discusses the preparation methods and properties of the materials. Notably, the focus of this paper is on the strategies to improve the electrochemical properties of these materials. We show that the performance of cobalt-based nanomaterials can be improved by designing their morphologies and, among the many morphologies, the mesoporous structure plays a major role. This is because mesoporous structures can mitigate volume changes and improve the performance of pseudo capacitance. This review is dedicated to the study of several cobalt-based nanomaterials in supercapacitors, and we hope that future scholars will make new breakthroughs in morphology design.https://www.mdpi.com/2079-4991/12/22/4065supercapacitorcobalt-containing nanomaterialsmorphological design |
| spellingShingle | Lin Yang Qinghan Zhu Ke Yang Xinkai Xu Jingchun Huang Hongfeng Chen Haiwang Wang A Review on the Application of Cobalt-Based Nanomaterials in Supercapacitors Nanomaterials supercapacitor cobalt-containing nanomaterials morphological design |
| title | A Review on the Application of Cobalt-Based Nanomaterials in Supercapacitors |
| title_full | A Review on the Application of Cobalt-Based Nanomaterials in Supercapacitors |
| title_fullStr | A Review on the Application of Cobalt-Based Nanomaterials in Supercapacitors |
| title_full_unstemmed | A Review on the Application of Cobalt-Based Nanomaterials in Supercapacitors |
| title_short | A Review on the Application of Cobalt-Based Nanomaterials in Supercapacitors |
| title_sort | review on the application of cobalt based nanomaterials in supercapacitors |
| topic | supercapacitor cobalt-containing nanomaterials morphological design |
| url | https://www.mdpi.com/2079-4991/12/22/4065 |
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