气候变化领域集成服务门户(CCPortal): Efficient visible light-driven water oxidation and proton reduction by an ordered covalent triazine-based framework

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DOI	10.1039/c7ee02981k
	Efficient visible light-driven water oxidation and proton reduction by an ordered covalent triazine-based framework
	Xie J.; Shevlin S.A.; Ruan Q.; Moniz S.J.A.; Liu Y.; Liu X.; Li Y.; Lau C.C.; Guo Z.X.; Tang J.
发表日期	2018
ISSN	17545692
起始页码	1617
结束页码	1624
卷号	11 期号:6
英文摘要	Water oxidation is a rate-determining step in solar driven H2 fuel synthesis and is technically challenging to promote. Despite decades of effort, only a few inorganic catalysts are effective and even fewer are effective under visible light. Recently, attention has been paid to synthetic semiconducting polymers, mainly on graphitic C3N4, with encouraging hydrogen evolution performance but lower activity for water oxidation. Here, a highly ordered covalent triazine-based framework, CTF-1 (C8N2H4), is synthesised by a very mild microwave-assisted polymerisation approach. It demonstrates extremely high activity for oxygen evolution under visible light irradiation, leading to an apparent quantum efficiency (AQE) of nearly 4% at 420 nm. Furthermore, the polymer can also efficiently evolve H2 from water. A high AQE of 6% at 420 nm for H2 production has also been achieved. The polymer holds great potential for overall water splitting. This exceptional performance is attributed to its well-defined and ordered structure, low carbonisation, and superior band positions. © 2018 The Royal Society of Chemistry.
英文关键词	Carbonization; Hydrogen production; Oxidation; Semiconducting polymers; Covalent triazine-based frameworks; Hydrogen evolution; Microwave assisted; Ordered structures; Oxygen evolution; Rate determining step; Visible-light irradiation; Visible-light-driven; Light; catalyst; hydrogen; inorganic compound; oxidation; polymer; polymerization; quantum mechanics; reduction; solar radiation; triazine; visible spectrum
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190215
作者单位	Department of Chemical Engineering, University College London, Torrington Place, London, WC1E7JE, United Kingdom; Department of Chemistry, University College London, 20 Gordon Street, London, WC1H0AJ, United Kingdom
推荐引用方式 GB/T 7714	Xie J.,Shevlin S.A.,Ruan Q.,et al. Efficient visible light-driven water oxidation and proton reduction by an ordered covalent triazine-based framework[J],2018,11(6).
APA	Xie J..,Shevlin S.A..,Ruan Q..,Moniz S.J.A..,Liu Y..,...&Tang J..(2018).Efficient visible light-driven water oxidation and proton reduction by an ordered covalent triazine-based framework.Energy & Environmental Science,11(6).
MLA	Xie J.,et al."Efficient visible light-driven water oxidation and proton reduction by an ordered covalent triazine-based framework".Energy & Environmental Science 11.6(2018).