Visible-Near-Infrared-Light-Driven Oxygen Evolution Reaction with   Noble-Metal-Free WO2-WO3 Hybrid Nanorods

doi:10.1021/acs.langmuir.6b03594

CORC > 北京大学 > 化学与分子工程学院

	Visible-Near-Infrared-Light-Driven Oxygen Evolution Reaction with Noble-Metal-Free WO2-WO3 Hybrid Nanorods
	Wang, Song Ling ; Mak, Yan Lin ; Wang, Shijie ; Chai, Jianwei ; Pan, Feng ; Foo, Maw Lin ; Chen, Wei ; Wu, Kai ; Xu, Guo Qin
刊名	LANGMUIR
	2016
关键词	PHOTOCATALYTIC WATER OXIDATION SURFACE-PLASMON RESONANCE TUNGSTEN-OXIDE NANOWIRES HIGHLY EFFICIENT WO3 HYDROGEN CATALYST NANOCRYSTALS COBALT FILMS
DOI	10.1021/acs.langmuir.6b03594
英文摘要	Understanding and manipulating the one half-reaction of photo induced hole-oxidation to oxygen are of fundamental importance to design and develop an efficient water-splitting process. To date, extensive studies on oxygen evolution from water splitting have focused on-visible-light harvesting. However, capturing low-energy photons for oxygen evolution, such as near-infrared (NIR) light, is challenging and not well-understood. This report presents new insights into photocatalytic water oxidation using visible and NIR light. WO2-WO3 hybrid nanorods were in situ fabricated using a wet-chemistry route. The presence of metallic WO2 strengthens light absorption and promotes the charge-carrier separation of WO3. The efficiency of the oxygen evolution reaction over noble metal-free WO2-WO3 hybrids was found to be significantly promoted. More importantly, NIR light (>= 700 nm) can be effectively trapped to cause the photocatalytic water oxidation reaction. The oxygen evolution rates are even up to around 220 (lambda = 700 nm) and 200 (lambda = 800 nm) mmol g(-1) h(-1). These results demonstrate that the WO2-WO3 material is highly active for water oxidation with low-energy photons and opens new opportunities for multichannel solar energy conversion.; Singapore National Research Foundation CREATE-SPURc program [R-143-001-205-592]; SCI(E); ARTICLE; chmxugq@nus.edu.sg; 49; 13046-13053; 32
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/458069]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Wang, Song Ling,Mak, Yan Lin,Wang, Shijie,et al. Visible-Near-Infrared-Light-Driven Oxygen Evolution Reaction with Noble-Metal-Free WO2-WO3 Hybrid Nanorods[J]. LANGMUIR,2016.
APA	Wang, Song Ling.,Mak, Yan Lin.,Wang, Shijie.,Chai, Jianwei.,Pan, Feng.,...&Xu, Guo Qin.(2016).Visible-Near-Infrared-Light-Driven Oxygen Evolution Reaction with Noble-Metal-Free WO2-WO3 Hybrid Nanorods.LANGMUIR.
MLA	Wang, Song Ling,et al."Visible-Near-Infrared-Light-Driven Oxygen Evolution Reaction with Noble-Metal-Free WO2-WO3 Hybrid Nanorods".LANGMUIR (2016).