Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution Reaction
Since the product contains no carbon-based substances and can be driven by non-carbon-based electricity, electrocatalytic water splitting is considered to be among the most effective strategies for alleviating the energy crisis and environmental pollution. This process helps lower greenhouse gas emi...
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MDPI AG
2024-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/29/21/5076 |
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| author | Meng Xia Xinxin Yu Zhuangzhuang Wu Yuzhen Zhao Lijuan Feng Qi Chen |
| author_facet | Meng Xia Xinxin Yu Zhuangzhuang Wu Yuzhen Zhao Lijuan Feng Qi Chen |
| author_sort | Meng Xia |
| collection | DOAJ |
| description | Since the product contains no carbon-based substances and can be driven by non-carbon-based electricity, electrocatalytic water splitting is considered to be among the most effective strategies for alleviating the energy crisis and environmental pollution. This process helps lower greenhouse gas emissions while also supporting the shift toward renewable energy sources. The anodic oxygen evolution reaction (OER) involves a more complex multi-electron transfer process, which is the principal limiting factor in overall water splitting. Extensive research has demonstrated that the controlled design of effective electrocatalysts can address this limitation. In this study, a previously unreported covalent organic framework material (COF-IM) was synthesized via a post-synthetic modification strategy. Notably, COF-IM contains imidazole nitrogen metal active sites. Transition metal-coordinated COF-IM@Co can function as a highly effective electrocatalyst, exhibiting a lower overpotential (403.8 mV@10 mA cm<sup>−2</sup>) in alkaline electrolytes, thereby highlighting its potential for practical applications in energy conversion technologies. This study offers new perspectives on the design and synthesis of COFs, while also making substantial contributions to the advancement and application of OER electrocatalysts. |
| format | Article |
| id | doaj-art-d6adf7e6bc884d7eaa90a727e0695108 |
| institution | OA Journals |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-d6adf7e6bc884d7eaa90a727e06951082025-08-20T02:14:23ZengMDPI AGMolecules1420-30492024-10-012921507610.3390/molecules29215076Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution ReactionMeng Xia0Xinxin Yu1Zhuangzhuang Wu2Yuzhen Zhao3Lijuan Feng4Qi Chen5School of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, ChinaSchool of Marine Science and Engineering, Hainan University, Haikou 570228, ChinaSchool of Marine Science and Engineering, Hainan University, Haikou 570228, ChinaSchool of Marine Science and Engineering, Hainan University, Haikou 570228, ChinaSchool of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, ChinaSchool of Marine Science and Engineering, Hainan University, Haikou 570228, ChinaSince the product contains no carbon-based substances and can be driven by non-carbon-based electricity, electrocatalytic water splitting is considered to be among the most effective strategies for alleviating the energy crisis and environmental pollution. This process helps lower greenhouse gas emissions while also supporting the shift toward renewable energy sources. The anodic oxygen evolution reaction (OER) involves a more complex multi-electron transfer process, which is the principal limiting factor in overall water splitting. Extensive research has demonstrated that the controlled design of effective electrocatalysts can address this limitation. In this study, a previously unreported covalent organic framework material (COF-IM) was synthesized via a post-synthetic modification strategy. Notably, COF-IM contains imidazole nitrogen metal active sites. Transition metal-coordinated COF-IM@Co can function as a highly effective electrocatalyst, exhibiting a lower overpotential (403.8 mV@10 mA cm<sup>−2</sup>) in alkaline electrolytes, thereby highlighting its potential for practical applications in energy conversion technologies. This study offers new perspectives on the design and synthesis of COFs, while also making substantial contributions to the advancement and application of OER electrocatalysts.https://www.mdpi.com/1420-3049/29/21/5076covalent organic frameworkspost-synthetic modificationcobalt coordinationoxygen evolution reaction |
| spellingShingle | Meng Xia Xinxin Yu Zhuangzhuang Wu Yuzhen Zhao Lijuan Feng Qi Chen Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution Reaction Molecules covalent organic frameworks post-synthetic modification cobalt coordination oxygen evolution reaction |
| title | Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution Reaction |
| title_full | Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution Reaction |
| title_fullStr | Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution Reaction |
| title_full_unstemmed | Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution Reaction |
| title_short | Metal Imidazole-Modified Covalent Organic Frameworks as Electrocatalysts for Alkaline Oxygen Evolution Reaction |
| title_sort | metal imidazole modified covalent organic frameworks as electrocatalysts for alkaline oxygen evolution reaction |
| topic | covalent organic frameworks post-synthetic modification cobalt coordination oxygen evolution reaction |
| url | https://www.mdpi.com/1420-3049/29/21/5076 |
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