Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution
To enhance the performance of semiconductor photocatalysts, cocatalysts are used to accelerate surface reactions. Herein, ultrasmall molybdenum–oxygen (MoOx) clusters are developed as a novel non-noble cocatalyst, which significantly promotes the photocatalytic hydrogen generation rate of CdS nanowi...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/150412 |
| _version_ | 1826111633480482816 |
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| author | Zhang, Huabin Zhang, Peng Qiu, Mei Dong, Juncai Zhang, Yongfan Lou, David Xiong Wen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Zhang, Huabin Zhang, Peng Qiu, Mei Dong, Juncai Zhang, Yongfan Lou, David Xiong Wen |
| author_sort | Zhang, Huabin |
| collection | NTU |
| description | To enhance the performance of semiconductor photocatalysts, cocatalysts are used to accelerate surface reactions. Herein, ultrasmall molybdenum–oxygen (MoOx) clusters are developed as a novel non-noble cocatalyst, which significantly promotes the photocatalytic hydrogen generation rate of CdS nanowires (NWs). As indicated by extended X-ray absorption fine structure analysis, direct bonds are formed between CdS NWs and MoOx clusters, which guarantee the migration of photo-generated charge carriers. Moreover, the MoOx clusters induce deep electron trap states owing to the unique atomic arrangement and configuration with the generation of long-lived electrons to enhance the activity. These findings may guide the design of efficient cocatalytic materials for solar water splitting and open a new avenue toward practical applications of ultrasmall clusters. |
| first_indexed | 2024-10-01T02:53:57Z |
| format | Journal Article |
| id | ntu-10356/150412 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:53:57Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1504122021-06-01T02:30:23Z Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution Zhang, Huabin Zhang, Peng Qiu, Mei Dong, Juncai Zhang, Yongfan Lou, David Xiong Wen School of Chemical and Biomedical Engineering Engineering::Chemical engineering CdS Clusters To enhance the performance of semiconductor photocatalysts, cocatalysts are used to accelerate surface reactions. Herein, ultrasmall molybdenum–oxygen (MoOx) clusters are developed as a novel non-noble cocatalyst, which significantly promotes the photocatalytic hydrogen generation rate of CdS nanowires (NWs). As indicated by extended X-ray absorption fine structure analysis, direct bonds are formed between CdS NWs and MoOx clusters, which guarantee the migration of photo-generated charge carriers. Moreover, the MoOx clusters induce deep electron trap states owing to the unique atomic arrangement and configuration with the generation of long-lived electrons to enhance the activity. These findings may guide the design of efficient cocatalytic materials for solar water splitting and open a new avenue toward practical applications of ultrasmall clusters. H.Z. and P.Z. contributed equally to this work. X.W.L. acknowledges the funding support from the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry, & Energy (MOTIE) of the Republic of Korea through the grant (No. 20168510050080). 2021-06-01T02:30:23Z 2021-06-01T02:30:23Z 2019 Journal Article Zhang, H., Zhang, P., Qiu, M., Dong, J., Zhang, Y. & Lou, D. X. W. (2019). Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution. Advanced Materials, 31(6), 1804883-. https://dx.doi.org/10.1002/adma.201804883 0935-9648 0000-0002-5557-4437 https://hdl.handle.net/10356/150412 10.1002/adma.201804883 30556181 2-s2.0-85058556153 6 31 1804883 en Advanced Materials © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. |
| spellingShingle | Engineering::Chemical engineering CdS Clusters Zhang, Huabin Zhang, Peng Qiu, Mei Dong, Juncai Zhang, Yongfan Lou, David Xiong Wen Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution |
| title | Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution |
| title_full | Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution |
| title_fullStr | Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution |
| title_full_unstemmed | Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution |
| title_short | Ultrasmall MoOx clusters as a novel cocatalyst for photocatalytic hydrogen evolution |
| title_sort | ultrasmall moox clusters as a novel cocatalyst for photocatalytic hydrogen evolution |
| topic | Engineering::Chemical engineering CdS Clusters |
| url | https://hdl.handle.net/10356/150412 |
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