Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity
Electrochemical water splitting is considered as a promising approach to produce clean and sustainable hydrogen fuel. As a new class of nanomaterials with high ratio of surface atoms and tunable composition and electronic structure, metal clusters are promising candidates as catalysts. Here, a new s...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/138584 |
| _version_ | 1824453960820326400 |
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| author | Wan, Xian-Kai Wu, Hao Bin Guan, Bu Yuan Luan, Deyan Lou, David Xiong Wen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Wan, Xian-Kai Wu, Hao Bin Guan, Bu Yuan Luan, Deyan Lou, David Xiong Wen |
| author_sort | Wan, Xian-Kai |
| collection | NTU |
| description | Electrochemical water splitting is considered as a promising approach to produce clean and sustainable hydrogen fuel. As a new class of nanomaterials with high ratio of surface atoms and tunable composition and electronic structure, metal clusters are promising candidates as catalysts. Here, a new strategy is demonstrated to synthesize active and stable Pt-based electrocatalysts for hydrogen evolution by confining Pt clusters in hollow mesoporous carbon spheres (Pt5 /HMCS). Such a structure would effectively stabilize the Pt clusters during the ligand removal process, leading to remarkable electrocatalytic performance for hydrogen production in both acidic and alkaline solutions. Particularly, the optimal Pt5 /HMCS electrocatalyst exhibits 12 times the mass activity of Pt in commercial Pt/C catalyst with similar Pt loading. This study exemplifies a simple yet effective approach to improve the cost effectiveness of precious-metal-based catalysts with stabilized metal clusters. |
| first_indexed | 2025-02-19T03:14:43Z |
| format | Journal Article |
| id | ntu-10356/138584 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:14:43Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1385842023-12-29T06:53:26Z Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity Wan, Xian-Kai Wu, Hao Bin Guan, Bu Yuan Luan, Deyan Lou, David Xiong Wen School of Chemical and Biomedical Engineering Engineering::Chemical engineering Electrocatalysis Hydrogen Evolution Reaction Electrochemical water splitting is considered as a promising approach to produce clean and sustainable hydrogen fuel. As a new class of nanomaterials with high ratio of surface atoms and tunable composition and electronic structure, metal clusters are promising candidates as catalysts. Here, a new strategy is demonstrated to synthesize active and stable Pt-based electrocatalysts for hydrogen evolution by confining Pt clusters in hollow mesoporous carbon spheres (Pt5 /HMCS). Such a structure would effectively stabilize the Pt clusters during the ligand removal process, leading to remarkable electrocatalytic performance for hydrogen production in both acidic and alkaline solutions. Particularly, the optimal Pt5 /HMCS electrocatalyst exhibits 12 times the mass activity of Pt in commercial Pt/C catalyst with similar Pt loading. This study exemplifies a simple yet effective approach to improve the cost effectiveness of precious-metal-based catalysts with stabilized metal clusters. NRF (Natl Research Foundation, S’pore) Accepted version 2020-05-11T01:08:18Z 2020-05-11T01:08:18Z 2020 Journal Article Wan, X.-K., Wu, H. B., Guan, B. Y., Luan, D., & Lou, D. X. W. (2020). Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity. Advanced Materials, 32(7), 1901349-. doi:10.1002/adma.201901349 0935-9648 https://hdl.handle.net/10356/138584 10.1002/adma.201901349 31879997 2-s2.0-85077153063 7 32 1901349 (1 of 8) 1901349 (8 of 8) en Advanced Materials © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. application/pdf |
| spellingShingle | Engineering::Chemical engineering Electrocatalysis Hydrogen Evolution Reaction Wan, Xian-Kai Wu, Hao Bin Guan, Bu Yuan Luan, Deyan Lou, David Xiong Wen Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity |
| title | Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity |
| title_full | Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity |
| title_fullStr | Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity |
| title_full_unstemmed | Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity |
| title_short | Confining sub-nanometer Pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity |
| title_sort | confining sub nanometer pt clusters in hollow mesoporous carbon spheres for boosting hydrogen evolution activity |
| topic | Engineering::Chemical engineering Electrocatalysis Hydrogen Evolution Reaction |
| url | https://hdl.handle.net/10356/138584 |
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