2D Porous TiO2 Single-Crystalline Nanostructure Demonstrating High Photo-Electrochemical Water Splitting Performance

doi:10.1002/adma.201705666

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	2D Porous TiO2 Single-Crystalline Nanostructure Demonstrating High Photo-Electrochemical Water Splitting Performance
	Butburee, Teera 1,2,3; Bai, Yang 1,2; Wang, Huanjun 1,2,8; Chen, Hongjun 1,2; Wang, Zhiliang 1,2; Liu, Gang 4,5; Zou, Jin 6; Khemthong, Pongtanawat 3; Lu, Gao Qing Max 7; Wang, Lianzhou 1,2
刊名	ADVANCED MATERIALS
	2018-05-24
卷号	30 期号:21 页码:8
关键词	2D ion-exchange pore-forming porous single-crystalline TiO2 films water splitting
ISSN号	0935-9648
DOI	10.1002/adma.201705666
通讯作者	Liu, Gang(gangliu@imr.ac.cn) ; Wang, Lianzhou(l.wang@uq.edu.au)
英文摘要	Porous single crystals are promising candidates for solar fuel production owing to their long range charge diffusion length, structural coherence, and sufficient reactive sites. Here, a simple template-free method of growing a selectively branched, 2D anatase TiO2 porous single crystalline nanostructure (PSN) on fluorine-doped tin oxide substrate is demonstrated. An innovative ion exchange-induced pore-forming process is designed to successfully create high porosity in the single-crystalline nanostructure with retention of excellent charge mobility and no detriment to crystal structure. PSN TiO2 film delivers a photocurrent of 1.02 mA cm(-2) at a very low potential of 0.4 V versus reversible hydrogen electrode (RHE) for photo-electrochemical water splitting, closing to the theoretical value of TiO2 (1.12 mA cm(-2)). Moreover, the current-potential curve featuring a small potential window from 0.1 to 0.4 V versus RHE under one-sun illumination has a near-ideal shape predicted by the Gartner Model, revealing that the charge separation and surface reaction on the PSN TiO2 photoanode are very efficient. The photo-electrochemical water splitting performance of the films indicates that the ion exchange-assisted synthesis strategy is effective in creating large surface area and single-crystalline porous photoelectrodes for efficient solar energy conversion.
资助项目	Australian Research Council ; National Natural Science Foundation of China[51629201] ; National Natural Science Foundation of China[51422210] ; Major Basic Research Program, Ministry of Science and Technology of China[2014CB239401] ; NANOTEC Thailand, Royal Thai Government Scholarship
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000434032600003
资助机构	Australian Research Council ; National Natural Science Foundation of China ; Major Basic Research Program, Ministry of Science and Technology of China ; NANOTEC Thailand, Royal Thai Government Scholarship
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/128124]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Gang; Wang, Lianzhou
作者单位	1.Univ Queensland, Australian Inst Bioengn & Nanotechnol, Nanomat Ctr, St Lucia, Qld 4072, Australia 2.Univ Queensland, Sch Chem Engn, St Lucia, Qld 4072, Australia 3.NSTDA, Natl Nanotechnol Ctr NANOTEC, Klongluang 12120, Pathumthani, Thailand 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 6.Univ Queensland, Mat Engn & Ctr Microscopy & Microanal, St Lucia, Qld 4072, Australia 7.Univ Surrey Guildford, Surrey GU2 7XH, England 8.Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Green React Engn & Technol, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Butburee, Teera,Bai, Yang,Wang, Huanjun,et al. 2D Porous TiO2 Single-Crystalline Nanostructure Demonstrating High Photo-Electrochemical Water Splitting Performance[J]. ADVANCED MATERIALS,2018,30(21):8.
APA	Butburee, Teera.,Bai, Yang.,Wang, Huanjun.,Chen, Hongjun.,Wang, Zhiliang.,...&Wang, Lianzhou.(2018).2D Porous TiO2 Single-Crystalline Nanostructure Demonstrating High Photo-Electrochemical Water Splitting Performance.ADVANCED MATERIALS,30(21),8.
MLA	Butburee, Teera,et al."2D Porous TiO2 Single-Crystalline Nanostructure Demonstrating High Photo-Electrochemical Water Splitting Performance".ADVANCED MATERIALS 30.21(2018):8.