Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells
Rational design of efficient hydrogen oxidation reaction (HOR) electrocatalysts with maximum utilization of platinum-group metal sites is critical to hydrogen fuel cells, but remains a major challenge due to the formidable potential-dependent energy barrier for hydrogen intermediate (H*) desorption...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Online Access: | https://hdl.handle.net/10356/172401 |
| _version_ | 1826110468430757888 |
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| author | Wang, Qilun Wang, Huawei Cao, Hao Tung, Ching-Wei Liu, Wei Hung, Sung-Fu Wang, Weijue Zhu, Chun Zhang, Zihou Cai, Weizheng Cheng, Yaqi Tao, Hua Bing Chen, Hao Ming Wang, Yang-Gang Li, Yujing Yang, Hongbin Huang, Yanqiang Li, Jun Liu, Bin |
| author2 | School of Chemistry, Chemical Engineering and Biotechnology |
| author_facet | School of Chemistry, Chemical Engineering and Biotechnology Wang, Qilun Wang, Huawei Cao, Hao Tung, Ching-Wei Liu, Wei Hung, Sung-Fu Wang, Weijue Zhu, Chun Zhang, Zihou Cai, Weizheng Cheng, Yaqi Tao, Hua Bing Chen, Hao Ming Wang, Yang-Gang Li, Yujing Yang, Hongbin Huang, Yanqiang Li, Jun Liu, Bin |
| author_sort | Wang, Qilun |
| collection | NTU |
| description | Rational design of efficient hydrogen oxidation reaction (HOR) electrocatalysts with maximum utilization of platinum-group metal sites is critical to hydrogen fuel cells, but remains a major challenge due to the formidable potential-dependent energy barrier for hydrogen intermediate (H*) desorption on single metal centres. Here we report atomically dispersed iridium–phosphorus (Ir–P) catalytic pairs with strong electronic coupling that integratively facilitate HOR kinetics, in which the reactive hydroxyl species adsorbed on the more oxophilic P site induces an alternative thermodynamic pathway to facilely combine with H* on the adjacent Ir atom, whereas isolated single-atom Ir catalysts are inactive. In H2–O2 fuel cells, this catalyst enables a peak power density of 1.93 W cm−2 and an anodic mass activity as high as 17.11 A mgIr−1 at 0.9 ViR-free, significantly outperforming commercial Pt/C. This work not only advances the development of anodic catalysts for fuel cells, but also provides a precise and universal active-site design principle for multi-intermediate catalysis. [Figure not available: see fulltext.]. |
| first_indexed | 2024-10-01T02:34:55Z |
| format | Journal Article |
| id | ntu-10356/172401 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:34:55Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1724012023-12-12T03:59:29Z Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells Wang, Qilun Wang, Huawei Cao, Hao Tung, Ching-Wei Liu, Wei Hung, Sung-Fu Wang, Weijue Zhu, Chun Zhang, Zihou Cai, Weizheng Cheng, Yaqi Tao, Hua Bing Chen, Hao Ming Wang, Yang-Gang Li, Yujing Yang, Hongbin Huang, Yanqiang Li, Jun Liu, Bin School of Chemistry, Chemical Engineering and Biotechnology Engineering::Chemical engineering Hydrogen Fuel Cells Atoms Rational design of efficient hydrogen oxidation reaction (HOR) electrocatalysts with maximum utilization of platinum-group metal sites is critical to hydrogen fuel cells, but remains a major challenge due to the formidable potential-dependent energy barrier for hydrogen intermediate (H*) desorption on single metal centres. Here we report atomically dispersed iridium–phosphorus (Ir–P) catalytic pairs with strong electronic coupling that integratively facilitate HOR kinetics, in which the reactive hydroxyl species adsorbed on the more oxophilic P site induces an alternative thermodynamic pathway to facilely combine with H* on the adjacent Ir atom, whereas isolated single-atom Ir catalysts are inactive. In H2–O2 fuel cells, this catalyst enables a peak power density of 1.93 W cm−2 and an anodic mass activity as high as 17.11 A mgIr−1 at 0.9 ViR-free, significantly outperforming commercial Pt/C. This work not only advances the development of anodic catalysts for fuel cells, but also provides a precise and universal active-site design principle for multi-intermediate catalysis. [Figure not available: see fulltext.]. Agency for Science, Technology and Research (A*STAR) This work was financially supported by the City University of Hong Kong start up fund and the Singapore Agency for Science, Technology and Research (AME IRG A20E5c0080). H.B.Y. acknowledges support from the National Natural Science Foundation of China (grant number 22075195). Y.L. acknowledges support from the National Natural Science Foundation of China (grant number 52171199). S.-F.H. acknowledges financial support from the National Science and Technology Council, Taiwan (contract number NSTC 111- 2628-M-A49-007). Part of this work was also financially supported by the National Key R&D Program of China (number 2022YFA1503102), the NSFC (numbers 22022504, 22033005 and 92261111), the Science, Technology and Innovation Commission of Shenzhen Municipality (number JCYJ20210324103608023), the Guangdong ‘Pearl River’ Talent Plan (number 2019QN01L353) and the Guangdong Provincial Key Laboratory of Catalysis (number 2020B121201002). 2023-12-12T03:59:28Z 2023-12-12T03:59:28Z 2023 Journal Article Wang, Q., Wang, H., Cao, H., Tung, C., Liu, W., Hung, S., Wang, W., Zhu, C., Zhang, Z., Cai, W., Cheng, Y., Tao, H. B., Chen, H. M., Wang, Y., Li, Y., Yang, H., Huang, Y., Li, J. & Liu, B. (2023). Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells. Nature Catalysis, 6(10), 916-926. https://dx.doi.org/10.1038/s41929-023-01017-z 2520-1158 https://hdl.handle.net/10356/172401 10.1038/s41929-023-01017-z 2-s2.0-85169156518 10 6 916 926 en AME IRG: A20E5c0080 Nature Catalysis © 2023 The Author(s), under exclusive licence to Springer Nature Limited. All rights reserved. |
| spellingShingle | Engineering::Chemical engineering Hydrogen Fuel Cells Atoms Wang, Qilun Wang, Huawei Cao, Hao Tung, Ching-Wei Liu, Wei Hung, Sung-Fu Wang, Weijue Zhu, Chun Zhang, Zihou Cai, Weizheng Cheng, Yaqi Tao, Hua Bing Chen, Hao Ming Wang, Yang-Gang Li, Yujing Yang, Hongbin Huang, Yanqiang Li, Jun Liu, Bin Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells |
| title | Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells |
| title_full | Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells |
| title_fullStr | Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells |
| title_full_unstemmed | Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells |
| title_short | Atomic metal–non-metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells |
| title_sort | atomic metal non metal catalytic pair drives efficient hydrogen oxidation catalysis in fuel cells |
| topic | Engineering::Chemical engineering Hydrogen Fuel Cells Atoms |
| url | https://hdl.handle.net/10356/172401 |
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