Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation
In this work, we have successfully constructed a cobalt-oxo (CoIII4 O4 ) cubane complex on polymeric carbon nitride (PCN) through pyridine linkage. The covalently grafted CoIII4 O4 cubane units were uniformly distributed on the PCN surface. The product exhibited greatly enhanced photocatalytic activ...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/144373 |
| _version_ | 1826115280199221248 |
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| author | Zhen, Wenlong Yuan, Xu Shi, Xiangyan Xue, Can |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Zhen, Wenlong Yuan, Xu Shi, Xiangyan Xue, Can |
| author_sort | Zhen, Wenlong |
| collection | NTU |
| description | In this work, we have successfully constructed a cobalt-oxo (CoIII4 O4 ) cubane complex on polymeric carbon nitride (PCN) through pyridine linkage. The covalently grafted CoIII4 O4 cubane units were uniformly distributed on the PCN surface. The product exhibited greatly enhanced photocatalytic activities for water oxidation under visible-light irradiation. Further characterizations and spectroscopic analyses revealed that the grafted CoIII4 O4 cubane units could effectively capture the photogenerated holes from excited PCN, lower the overpotential of oxygen evolution reaction (OER), and serve as efficient catalysts to promote the multi-electron water oxidation process. This work provides new insight into the future development of efficient photocatalysts by grafting molecular catalysts for artificial photosynthesis. |
| first_indexed | 2024-10-01T03:52:54Z |
| format | Journal Article |
| id | ntu-10356/144373 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:52:54Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1443732023-07-14T15:47:55Z Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation Zhen, Wenlong Yuan, Xu Shi, Xiangyan Xue, Can School of Materials Science and Engineering Engineering::Materials Photocatalytic Water Oxidation Polymeric Carbon Nitride In this work, we have successfully constructed a cobalt-oxo (CoIII4 O4 ) cubane complex on polymeric carbon nitride (PCN) through pyridine linkage. The covalently grafted CoIII4 O4 cubane units were uniformly distributed on the PCN surface. The product exhibited greatly enhanced photocatalytic activities for water oxidation under visible-light irradiation. Further characterizations and spectroscopic analyses revealed that the grafted CoIII4 O4 cubane units could effectively capture the photogenerated holes from excited PCN, lower the overpotential of oxygen evolution reaction (OER), and serve as efficient catalysts to promote the multi-electron water oxidation process. This work provides new insight into the future development of efficient photocatalysts by grafting molecular catalysts for artificial photosynthesis. Ministry of Education (MOE) Accepted version This work is supported by the Ministry of Education, Singapore, under AcRF-Tier2 (MOE2018-T2-1-017) and AcRF-Tier1 (MOE2019-T1-002-012, RG102/19). The authors also thank the support from NTU seed funding for Solar Fuels Laboratory. 2020-11-02T06:40:22Z 2020-11-02T06:40:22Z 2020 Journal Article Zhen, W., Yuan, X., Shi, X., & Xue, C. (2020). Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation. Chemistry - An Asian Journal, 15(16), 2480-2486. doi:10.1002/asia.202000583 1861-471X https://hdl.handle.net/10356/144373 10.1002/asia.202000583 32558309 16 15 2480 2486 en Chemistry - An Asian Journal 10.21979/N9/VO5V9Z This is the accepted version of the following article: Zhen, W., Yuan, X., Shi, X., & Xue, C. (2020). Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation. Chemistry - An Asian Journal, 15(16), 2480-2486. doi:10.1002/asia.202000583, which has been published in final form at 10.1002/asia.202000583. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. application/pdf |
| spellingShingle | Engineering::Materials Photocatalytic Water Oxidation Polymeric Carbon Nitride Zhen, Wenlong Yuan, Xu Shi, Xiangyan Xue, Can Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation |
| title | Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation |
| title_full | Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation |
| title_fullStr | Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation |
| title_full_unstemmed | Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation |
| title_short | Grafting molecular cobalt-oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation |
| title_sort | grafting molecular cobalt oxo cubane catalyst on polymeric carbon nitride for efficient photocatalytic water oxidation |
| topic | Engineering::Materials Photocatalytic Water Oxidation Polymeric Carbon Nitride |
| url | https://hdl.handle.net/10356/144373 |
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