Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction
The rational design of single-atom catalysts featuring excellent conductivity, highly accessible discrete active sites and favorable mass transfer is crucial for electrocatalysis but remains challenging. In this study, a reliable Ni-catalyzed and Ni-templated strategy is developed to synthesize a si...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/156846 |
| _version_ | 1826127884980322304 |
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| author | Li, Yunxiang Lu, Xue Feng Xi, Shibo Luan, Deyan Wang, Xin Lou, David Xiong Wen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Li, Yunxiang Lu, Xue Feng Xi, Shibo Luan, Deyan Wang, Xin Lou, David Xiong Wen |
| author_sort | Li, Yunxiang |
| collection | NTU |
| description | The rational design of single-atom catalysts featuring excellent conductivity, highly accessible discrete active sites and favorable mass transfer is crucial for electrocatalysis but remains challenging. In this study, a reliable Ni-catalyzed and Ni-templated strategy is developed to synthesize a single-atom catalyst by transforming metallic Ni into single-Ni atoms anchored on hollow porous urchin-like (HPU) N-doped carbon (NC) (designated as Ni-NC(HPU)), which possesses high crystallinity and sufficient Ni-N4 moiety (2.4 wt %). The unique hollow thorns on the surface, good conductivity and large external surface area facilitate electron/mass transfer and exposure of single-Ni sites. As a result, the Ni-NC(HPU) catalyst exhibits remarkable activity and high stability for CO2 electroreduction. Moreover, this synthetic strategy can also be facilely extended to prepare distinct hollow porous architectures with similar components, such as the wire- and sphere-like ones. |
| first_indexed | 2024-10-01T07:15:47Z |
| format | Journal Article |
| id | ntu-10356/156846 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:15:47Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1568462023-12-29T06:51:56Z Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction Li, Yunxiang Lu, Xue Feng Xi, Shibo Luan, Deyan Wang, Xin Lou, David Xiong Wen School of Chemical and Biomedical Engineering Engineering::Chemical engineering Engineering::Materials Electrocatalysis Hollow Porous Carbon The rational design of single-atom catalysts featuring excellent conductivity, highly accessible discrete active sites and favorable mass transfer is crucial for electrocatalysis but remains challenging. In this study, a reliable Ni-catalyzed and Ni-templated strategy is developed to synthesize a single-atom catalyst by transforming metallic Ni into single-Ni atoms anchored on hollow porous urchin-like (HPU) N-doped carbon (NC) (designated as Ni-NC(HPU)), which possesses high crystallinity and sufficient Ni-N4 moiety (2.4 wt %). The unique hollow thorns on the surface, good conductivity and large external surface area facilitate electron/mass transfer and exposure of single-Ni sites. As a result, the Ni-NC(HPU) catalyst exhibits remarkable activity and high stability for CO2 electroreduction. Moreover, this synthetic strategy can also be facilely extended to prepare distinct hollow porous architectures with similar components, such as the wire- and sphere-like ones. Ministry of Education (MOE) Submitted/Accepted version X.W.L. acknowledges the funding support from the Ministry of Education of Singapore through the Academic Research Fund (AcRF) Tier-2 grant (MOE2019-T2-2-049). 2022-04-27T05:46:19Z 2022-04-27T05:46:19Z 2022 Journal Article Li, Y., Lu, X. F., Xi, S., Luan, D., Wang, X. & Lou, D. X. W. (2022). Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction. Angewandte Chemie International Edition, 61(18), e202201491-. https://dx.doi.org/10.1002/anie.202201491 1433-7851 https://hdl.handle.net/10356/156846 10.1002/anie.202201491 35199911 18 61 e202201491 en MOE2019-T2-2-049 Angewandte Chemie International Edition This is the peer reviewed version of the following article: Li, Y., Lu, X. F., Xi, S., Luan, D., Wang, X. & Lou, D. X. W. (2022). Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction. Angewandte Chemie International Edition, 61(18), e202201491-, which has been published in final form at https://doi.org/10.1002/anie.202201491. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. application/pdf |
| spellingShingle | Engineering::Chemical engineering Engineering::Materials Electrocatalysis Hollow Porous Carbon Li, Yunxiang Lu, Xue Feng Xi, Shibo Luan, Deyan Wang, Xin Lou, David Xiong Wen Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction |
| title | Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction |
| title_full | Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction |
| title_fullStr | Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction |
| title_full_unstemmed | Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction |
| title_short | Synthesis of N-doped highly graphitic carbon urchin-like hollow structures loaded with single-Ni atoms towards efficient CO₂ electroreduction |
| title_sort | synthesis of n doped highly graphitic carbon urchin like hollow structures loaded with single ni atoms towards efficient co₂ electroreduction |
| topic | Engineering::Chemical engineering Engineering::Materials Electrocatalysis Hollow Porous Carbon |
| url | https://hdl.handle.net/10356/156846 |
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