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...

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Main Authors: Huang, Huiting, Feng, Jianyong, Fu, Hongwei, Zhang, Bowei, Fang, Tao, Qian, Qinfeng, Huang, Yizhong, Yan, Shicheng, Tang, Junwang, Li, Zhaosheng, Zou, Zhigang
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/138374
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.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.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Materials
Solar Water Splitting
Particle-assembled Films
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
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.
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
format Article
author 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
title 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_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_sort improving solar water-splitting performance of lataon2 by bulk defect control and interface engineering
publishDate 2020
url https://hdl.handle.net/10356/138374
_version_ 1681057674341384192