Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis
Hetero-nanostructures featured with both strong plasmon absorption and high catalytic activity are believed to be ideal platforms to realize efficient light-driven catalysis. However, in reality, it remains a great challenge to acquire high-performance catalysis in such hetero-nanostructures due to...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/87591 http://hdl.handle.net/10220/45457 |
| _version_ | 1811685951346311168 |
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| author | Guo, Jun Zhang, Yin Shi, Lin Zhu, Yanfei Mideksa, Megersa F. Hou, Ke Zhao, Wenshi Wang, Dawei Zhao, Meiting Zhang, Xiaofei Lv, Jiawei Zhang, Jianqi Wang, Xiaoli Tang, Zhiyong |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Guo, Jun Zhang, Yin Shi, Lin Zhu, Yanfei Mideksa, Megersa F. Hou, Ke Zhao, Wenshi Wang, Dawei Zhao, Meiting Zhang, Xiaofei Lv, Jiawei Zhang, Jianqi Wang, Xiaoli Tang, Zhiyong |
| author_sort | Guo, Jun |
| collection | NTU |
| description | Hetero-nanostructures featured with both strong plasmon absorption and high catalytic activity are believed to be ideal platforms to realize efficient light-driven catalysis. However, in reality, it remains a great challenge to acquire high-performance catalysis in such hetero-nanostructures due to poor generation and transfer of plamson-induced hot electrons. In this report, we demonstrate that Au nanorod@Pd superstructures (Au@Pd SSs), where the ordered Pd nanoarrays are precisely grown on Au nanorod surfaces via solution-based seed-mediated approach, would be an excellent solution for this challenge. Both experiment and theory disclose that the ordered arrangement of Pd on Au nanorod surfaces largely promotes hot electron generation and transfer via amplified local electromagnetic field and decreased electron–phonon coupling, respectively. Each effect is separately highlighted in experiments by the significant plasmon-enhanced catalytic activity of Au@Pd SSs in two types of important reactions with a distinct time scale of bond-dissociation event: molecular oxygen activation and carbon–carbon coupling reaction. This work opens the door to design and application of new generation photocatalysts. |
| first_indexed | 2024-10-01T04:52:41Z |
| format | Journal Article |
| id | ntu-10356/87591 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:52:41Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/875912023-07-14T15:51:58Z Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis Guo, Jun Zhang, Yin Shi, Lin Zhu, Yanfei Mideksa, Megersa F. Hou, Ke Zhao, Wenshi Wang, Dawei Zhao, Meiting Zhang, Xiaofei Lv, Jiawei Zhang, Jianqi Wang, Xiaoli Tang, Zhiyong School of Materials Science & Engineering Hetero-structures Plasmon Hetero-nanostructures featured with both strong plasmon absorption and high catalytic activity are believed to be ideal platforms to realize efficient light-driven catalysis. However, in reality, it remains a great challenge to acquire high-performance catalysis in such hetero-nanostructures due to poor generation and transfer of plamson-induced hot electrons. In this report, we demonstrate that Au nanorod@Pd superstructures (Au@Pd SSs), where the ordered Pd nanoarrays are precisely grown on Au nanorod surfaces via solution-based seed-mediated approach, would be an excellent solution for this challenge. Both experiment and theory disclose that the ordered arrangement of Pd on Au nanorod surfaces largely promotes hot electron generation and transfer via amplified local electromagnetic field and decreased electron–phonon coupling, respectively. Each effect is separately highlighted in experiments by the significant plasmon-enhanced catalytic activity of Au@Pd SSs in two types of important reactions with a distinct time scale of bond-dissociation event: molecular oxygen activation and carbon–carbon coupling reaction. This work opens the door to design and application of new generation photocatalysts. Accepted version 2018-08-06T01:55:16Z 2019-12-06T16:45:11Z 2018-08-06T01:55:16Z 2019-12-06T16:45:11Z 2017 Journal Article Guo, J., Zhang, Y., Shi, L., Zhu, Y., Mideksa, M. F., Hou, K., et al. (2017). Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis. Journal of the American Chemical Society, 139(49), 17964-17972. 0002-7863 https://hdl.handle.net/10356/87591 http://hdl.handle.net/10220/45457 10.1021/jacs.7b08903 en Journal of the American Chemical Society © 2017 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of the American Chemical Society, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/jacs.7b08903]. 36 p. application/pdf |
| spellingShingle | Hetero-structures Plasmon Guo, Jun Zhang, Yin Shi, Lin Zhu, Yanfei Mideksa, Megersa F. Hou, Ke Zhao, Wenshi Wang, Dawei Zhao, Meiting Zhang, Xiaofei Lv, Jiawei Zhang, Jianqi Wang, Xiaoli Tang, Zhiyong Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis |
| title | Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis |
| title_full | Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis |
| title_fullStr | Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis |
| title_full_unstemmed | Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis |
| title_short | Boosting hot electrons in hetero-superstructures for plasmon-enhanced catalysis |
| title_sort | boosting hot electrons in hetero superstructures for plasmon enhanced catalysis |
| topic | Hetero-structures Plasmon |
| url | https://hdl.handle.net/10356/87591 http://hdl.handle.net/10220/45457 |
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