Decoupling H2 and O2 Release in Particulate Photocatalytic Overall Water Splitting Using a Reversible O2 Binder

Dan Liu; Huihui Xu; Jinni Shen; Xun Wang; Chengwei Qiu; Huaxiang Lin; Jinlin Long; Ying Wang; Wenxin Dai; Yuanxing Fang; Yanhui Yang; Xuxu Wang; Xianzhi Fu; Zizhong Zhang

doi:10.1002/anie.202420913

Decoupling H₂ and O₂ Release in Particulate Photocatalytic Overall Water Splitting Using a Reversible O₂ Binder

Dan Liu, Huihui Xu, Jinni Shen, Xun Wang, Chengwei Qiu, Huaxiang Lin, Jinlin Long, Ying Wang, Wenxin Dai, Yuanxing Fang, Yanhui Yang, Xuxu Wang, Xianzhi Fu, Zizhong Zhang

School of Chemistry and Moleculai Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

H₂ and O₂ evolutions occur simultaneously for conventional particulate photocatalytic overall water splitting (PPOWS), leading to a significant backward reaction and the formation of an explosive H₂/O₂ gas mixture. This is an issue that must be addressed prior to industrialization of PPOWS. Here, a convenient, cost-effective, and scalable concept is introduced to uncouple hydrogen and oxygen production for PPOWS. Based on this idea, a three-component photocatalyst, Co(5 %)-HPCN/(rGO/Pt), is constructed, consisting of a photoresponsive chip (HPCN), a H₂ evolution cocatalyst (rGO/Pt), and a cobalt complex capable of reversibly binding O₂ (Co), to achieve the decoupling of PPOWS under alternating UV and visible light irradiations. The asynchronous O₂ and H₂ evolution strategy have considerable flexibility regarding the photocatalyst structure and light sources suitable for PPOWS.

Original language	English
Journal	Angewandte Chemie - International Edition
DOIs	https://doi.org/10.1002/anie.202420913
State	Accepted/In press - 2025

Keywords

PPOWS decoupling
carbon nitride chips
overall water splitting
photocatalytic
reaction mechanism

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/anie.202420913

Cite this

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title = "Decoupling H2 and O2 Release in Particulate Photocatalytic Overall Water Splitting Using a Reversible O2 Binder",

abstract = "H2 and O2 evolutions occur simultaneously for conventional particulate photocatalytic overall water splitting (PPOWS), leading to a significant backward reaction and the formation of an explosive H2/O2 gas mixture. This is an issue that must be addressed prior to industrialization of PPOWS. Here, a convenient, cost-effective, and scalable concept is introduced to uncouple hydrogen and oxygen production for PPOWS. Based on this idea, a three-component photocatalyst, Co(5 %)-HPCN/(rGO/Pt), is constructed, consisting of a photoresponsive chip (HPCN), a H2 evolution cocatalyst (rGO/Pt), and a cobalt complex capable of reversibly binding O2 (Co), to achieve the decoupling of PPOWS under alternating UV and visible light irradiations. The asynchronous O2 and H2 evolution strategy have considerable flexibility regarding the photocatalyst structure and light sources suitable for PPOWS.",

keywords = "PPOWS decoupling, carbon nitride chips, overall water splitting, photocatalytic, reaction mechanism",

author = "Dan Liu and Huihui Xu and Jinni Shen and Xun Wang and Chengwei Qiu and Huaxiang Lin and Jinlin Long and Ying Wang and Wenxin Dai and Yuanxing Fang and Yanhui Yang and Xuxu Wang and Xianzhi Fu and Zizhong Zhang",

note = "Publisher Copyright: {\textcopyright} 2024 Wiley-VCH GmbH.",

year = "2025",

doi = "10.1002/anie.202420913",

language = "英语",

journal = "Angewandte Chemie - International Edition",

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TY - JOUR

T1 - Decoupling H2 and O2 Release in Particulate Photocatalytic Overall Water Splitting Using a Reversible O2 Binder

AU - Liu, Dan

AU - Xu, Huihui

AU - Shen, Jinni

AU - Wang, Xun

AU - Qiu, Chengwei

AU - Lin, Huaxiang

AU - Long, Jinlin

AU - Wang, Ying

AU - Dai, Wenxin

AU - Fang, Yuanxing

AU - Yang, Yanhui

AU - Wang, Xuxu

AU - Fu, Xianzhi

AU - Zhang, Zizhong

PY - 2025

Y1 - 2025

N2 - H2 and O2 evolutions occur simultaneously for conventional particulate photocatalytic overall water splitting (PPOWS), leading to a significant backward reaction and the formation of an explosive H2/O2 gas mixture. This is an issue that must be addressed prior to industrialization of PPOWS. Here, a convenient, cost-effective, and scalable concept is introduced to uncouple hydrogen and oxygen production for PPOWS. Based on this idea, a three-component photocatalyst, Co(5 %)-HPCN/(rGO/Pt), is constructed, consisting of a photoresponsive chip (HPCN), a H2 evolution cocatalyst (rGO/Pt), and a cobalt complex capable of reversibly binding O2 (Co), to achieve the decoupling of PPOWS under alternating UV and visible light irradiations. The asynchronous O2 and H2 evolution strategy have considerable flexibility regarding the photocatalyst structure and light sources suitable for PPOWS.

AB - H2 and O2 evolutions occur simultaneously for conventional particulate photocatalytic overall water splitting (PPOWS), leading to a significant backward reaction and the formation of an explosive H2/O2 gas mixture. This is an issue that must be addressed prior to industrialization of PPOWS. Here, a convenient, cost-effective, and scalable concept is introduced to uncouple hydrogen and oxygen production for PPOWS. Based on this idea, a three-component photocatalyst, Co(5 %)-HPCN/(rGO/Pt), is constructed, consisting of a photoresponsive chip (HPCN), a H2 evolution cocatalyst (rGO/Pt), and a cobalt complex capable of reversibly binding O2 (Co), to achieve the decoupling of PPOWS under alternating UV and visible light irradiations. The asynchronous O2 and H2 evolution strategy have considerable flexibility regarding the photocatalyst structure and light sources suitable for PPOWS.

KW - PPOWS decoupling

KW - carbon nitride chips

KW - overall water splitting

KW - photocatalytic

KW - reaction mechanism

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U2 - 10.1002/anie.202420913

DO - 10.1002/anie.202420913

M3 - 文章

AN - SCOPUS:85213850459

SN - 1433-7851

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

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