Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction
Single Fe atom dispersed carbon nanostructures show promising oxygen reduction reaction (ORR) activities for renewable energy applications. Nevertheless, the microenvironment of the single Fe atoms needs to be further engineered to optimize the catalytic performance, which is challenging. In this wo...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/159817 |
| _version_ | 1826127342894841856 |
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| author | Wang, Mengran Yang, Wenjuan Li, Xinzhe Xu, Yangsen Zheng, Lirong Su, Chenliang Liu, Bin |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Wang, Mengran Yang, Wenjuan Li, Xinzhe Xu, Yangsen Zheng, Lirong Su, Chenliang Liu, Bin |
| author_sort | Wang, Mengran |
| collection | NTU |
| description | Single Fe atom dispersed carbon nanostructures show promising oxygen reduction reaction (ORR) activities for renewable energy applications. Nevertheless, the microenvironment of the single Fe atoms needs to be further engineered to optimize the catalytic performance, which is challenging. In this work, we develop a NaCl-template pyrolysis method to fabricate single Fe atom catalysts with atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets. The N and S coordinated Fe atomic sites (FeN3S) are found to induce charge redistribution, lowering the binding strength of oxygenated reaction intermediates and leading to fast reaction kinetics and good oxygen reduction activity. Our work provides an effective method to regulate the microenvironment of single-atom catalysts for optimizing electrocatalytic performance. |
| first_indexed | 2024-10-01T07:07:20Z |
| format | Journal Article |
| id | ntu-10356/159817 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:07:20Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1598172022-07-04T03:14:39Z Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction Wang, Mengran Yang, Wenjuan Li, Xinzhe Xu, Yangsen Zheng, Lirong Su, Chenliang Liu, Bin School of Chemical and Biomedical Engineering Engineering::Chemical engineering Hierarchical Porous Carbon Catalytic Sites Single Fe atom dispersed carbon nanostructures show promising oxygen reduction reaction (ORR) activities for renewable energy applications. Nevertheless, the microenvironment of the single Fe atoms needs to be further engineered to optimize the catalytic performance, which is challenging. In this work, we develop a NaCl-template pyrolysis method to fabricate single Fe atom catalysts with atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets. The N and S coordinated Fe atomic sites (FeN3S) are found to induce charge redistribution, lowering the binding strength of oxygenated reaction intermediates and leading to fast reaction kinetics and good oxygen reduction activity. Our work provides an effective method to regulate the microenvironment of single-atom catalysts for optimizing electrocatalytic performance. The authors acknowledge the financial support from the Research Foundation of China Postdoctoral Science (2018M643177), National Natural Science Foundation of China (21972094), Guangdong Special Support Program, Pengcheng Scholar program, Shenzhen Peacock Plan (KQTD2016053112042971), and the Science and Technology Planning Project of Shenzhen of China (JCYJ20190808141809282). The authors also acknowledge the support of the 1W1B beamline of Beijing Synchrotron radiation facility (BSRF). 2022-07-04T03:14:39Z 2022-07-04T03:14:39Z 2021 Journal Article Wang, M., Yang, W., Li, X., Xu, Y., Zheng, L., Su, C. & Liu, B. (2021). Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction. ACS Energy Letters, 6(2), 379-386. https://dx.doi.org/10.1021/acsenergylett.0c02484 2380-8195 https://hdl.handle.net/10356/159817 10.1021/acsenergylett.0c02484 2-s2.0-85099656655 2 6 379 386 en ACS Energy Letters © 2021 American Chemical Society. All rights reserved. |
| spellingShingle | Engineering::Chemical engineering Hierarchical Porous Carbon Catalytic Sites Wang, Mengran Yang, Wenjuan Li, Xinzhe Xu, Yangsen Zheng, Lirong Su, Chenliang Liu, Bin Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction |
| title | Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction |
| title_full | Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction |
| title_fullStr | Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction |
| title_full_unstemmed | Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction |
| title_short | Atomically dispersed Fe-heteroatom (N, S) bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction |
| title_sort | atomically dispersed fe heteroatom n s bridge sites anchored on carbon nanosheets for promoting oxygen reduction reaction |
| topic | Engineering::Chemical engineering Hierarchical Porous Carbon Catalytic Sites |
| url | https://hdl.handle.net/10356/159817 |
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