Fabrication of electron-acceptor staggered AB Covalent triazine-based frameworks for enhanced visible-light-driven H-2 evolution

doi:10.1016/j.jcis.2021.10.100

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	Fabrication of electron-acceptor staggered AB Covalent triazine-based frameworks for enhanced visible-light-driven H-2 evolution
	Y. N. Li; R. Zhang; C. Y. Li; H. Li; Q. R. Fang and T. F. Xie
刊名	Journal of Colloid and Interface Science
	2022
卷号	608 页码:1449-1456
ISSN号	0021-9797
DOI	10.1016/j.jcis.2021.10.100
英文摘要	Covalent triazine-based frameworks (CTFs) have been emerged as a promising organic material for photocatalytic water splitting. However, all of the CTFs only are in the form of AA stacking model to participate in water splitting. Herein, two CTF-1 isomers with different stacking models (eclipsed AA, staggered AB) were obtained by modulating the reaction temperature. Interestingly, experimental and theoretical calculations showed that the crystalline AB stacking CTF-1 possessed a much higher activity for photochemical hydrogen evolution (362 lmol g-1 h-1) than AA stacking CTF-1 (70 mmol h-1 g-1) for the first time. The outstanding photochemical performance could be attributed to its distinct structural feature that allows more N atoms with higher electron-withdrawing property to be involved in the water reduction reaction. Notably, as a cathode material for PEC water reduction, AB stacking CTF-1 also demonstrated an excellent saturated photocurrent density up to 77 mA cm-2 at 0 V vs. RHE, which was superior to the AA stacking CTF-1 (47 mA cm-2). Furthermore, the correlation between stacking models and photocatalytic H2 evolution of CTF-1 were investigated. This study thus paves the path for designing optimal photocatalyst and extending the novel applications of CTF-based materials. (c) 2021 Elsevier Inc. All rights reserved.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/66658]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. N. Li,R. Zhang,C. Y. Li,et al. Fabrication of electron-acceptor staggered AB Covalent triazine-based frameworks for enhanced visible-light-driven H-2 evolution[J]. Journal of Colloid and Interface Science,2022,608:1449-1456.
APA	Y. N. Li,R. Zhang,C. Y. Li,H. Li,&Q. R. Fang and T. F. Xie.(2022).Fabrication of electron-acceptor staggered AB Covalent triazine-based frameworks for enhanced visible-light-driven H-2 evolution.Journal of Colloid and Interface Science,608,1449-1456.
MLA	Y. N. Li,et al."Fabrication of electron-acceptor staggered AB Covalent triazine-based frameworks for enhanced visible-light-driven H-2 evolution".Journal of Colloid and Interface Science 608(2022):1449-1456.