Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering
Particle-assembled photoanode films for solar water splitting are often subjected to serious electron-hole recombination, thus exhibiting low solar-to-hydrogen efficiency. The construction of efficient particle-assembled photoanode remains a challenge. Here, taking LaTaON2 particle-assembled photoan...
| Main Authors: | , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/138374 |
| _version_ | 1826120077833928704 |
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| author | Huang, Huiting Feng, Jianyong Fu, Hongwei Zhang, Bowei Fang, Tao Qian, Qinfeng Huang, Yizhong Yan, Shicheng Tang, Junwang Li, Zhaosheng Zou, Zhigang |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Huang, Huiting Feng, Jianyong Fu, Hongwei Zhang, Bowei Fang, Tao Qian, Qinfeng Huang, Yizhong Yan, Shicheng Tang, Junwang Li, Zhaosheng Zou, Zhigang |
| author_sort | Huang, Huiting |
| collection | NTU |
| description | Particle-assembled photoanode films for solar water splitting are often subjected to serious electron-hole recombination, thus exhibiting low solar-to-hydrogen efficiency. The construction of efficient particle-assembled photoanode remains a challenge. Here, taking LaTaON2 particle-assembled photoanode as a model, bulk defect control and interface engineering were introduced to reduce the electron-hole recombination. As a result, the solar photocurrent of LaTaON2 achieves 2.1 mA cm−2 at 1.6 VRHE after the modification of CoOx, an order of magnitude greater than the previously-reported value of 0.15 mA cm−2. This dramatic enhancement is mainly ascribed to increased bulk electrical conductivity, and less back reactions on the conductive substrates, as well as facilitated hole transfer to reaction sites. This study may provide guidelines for the construction of highly efficient particle-assembled photoanode films. |
| first_indexed | 2024-10-01T05:10:39Z |
| format | Journal Article |
| id | ntu-10356/138374 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:10:39Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1383742020-06-01T10:13:45Z Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering Huang, Huiting Feng, Jianyong Fu, Hongwei Zhang, Bowei Fang, Tao Qian, Qinfeng Huang, Yizhong Yan, Shicheng Tang, Junwang Li, Zhaosheng Zou, Zhigang School of Materials Science & Engineering Engineering::Materials Solar Water Splitting Particle-assembled Films Particle-assembled photoanode films for solar water splitting are often subjected to serious electron-hole recombination, thus exhibiting low solar-to-hydrogen efficiency. The construction of efficient particle-assembled photoanode remains a challenge. Here, taking LaTaON2 particle-assembled photoanode as a model, bulk defect control and interface engineering were introduced to reduce the electron-hole recombination. As a result, the solar photocurrent of LaTaON2 achieves 2.1 mA cm−2 at 1.6 VRHE after the modification of CoOx, an order of magnitude greater than the previously-reported value of 0.15 mA cm−2. This dramatic enhancement is mainly ascribed to increased bulk electrical conductivity, and less back reactions on the conductive substrates, as well as facilitated hole transfer to reaction sites. This study may provide guidelines for the construction of highly efficient particle-assembled photoanode films. 2020-05-05T04:43:47Z 2020-05-05T04:43:47Z 2017 Journal Article Huang, H., Feng, J., Fu, H., Zhang, B., Fang, T., Qian, Q., . . . Zou, Z. (2018). Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering. Applied Catalysis B: Environmental, 226, 111-116. doi:10.1016/j.apcatb.2017.12.033 0926-3373 https://hdl.handle.net/10356/138374 10.1016/j.apcatb.2017.12.033 2-s2.0-85038848690 226 111 116 en Applied Catalysis B: Environmental © 2017 Elsevier B.V. All rights reserved. This paper was published in Applied Catalysis B: Environmental and is made available with permission of Elsevier B.V. |
| spellingShingle | Engineering::Materials Solar Water Splitting Particle-assembled Films Huang, Huiting Feng, Jianyong Fu, Hongwei Zhang, Bowei Fang, Tao Qian, Qinfeng Huang, Yizhong Yan, Shicheng Tang, Junwang Li, Zhaosheng Zou, Zhigang Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering |
| title | Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering |
| title_full | Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering |
| title_fullStr | Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering |
| title_full_unstemmed | Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering |
| title_short | Improving solar water-splitting performance of LaTaON2 by bulk defect control and interface engineering |
| title_sort | improving solar water splitting performance of lataon2 by bulk defect control and interface engineering |
| topic | Engineering::Materials Solar Water Splitting Particle-assembled Films |
| url | https://hdl.handle.net/10356/138374 |
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