Template-free scalable synthesis of TiO2 hollow nanoparticles for excellent photoelectrochemical applications

doi:10.1007/s10853-017-1642-0

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	Template-free scalable synthesis of TiO2 hollow nanoparticles for excellent photoelectrochemical applications
	Zhang, Yuyuan 1; Hu, Huawen 1; Chang, Menglei 1; Wei, Hongyang 1; Chen, Dongchu 1; Zhang, Min 1; Wu, Liangpeng 2; Li, Xinjun 2
刊名	JOURNAL OF MATERIALS SCIENCE
	2018-02-01
卷号	53 期号:3 页码:2102-2114
DOI	10.1007/s10853-017-1642-0
文献子类	Article
英文摘要	With the energy crisis and resource depletion nowadays, novel, highly performing, and cost-effective semiconductors are in urgent demand for efficiently harvesting solar energy for photoelectrochemical applications. Herein, this study presents low-cost anatase TiO2 hollow nanoparticles as prepared by a critical liquid-phase deposition (LPD) processing combined with a hydrothermal reaction and calcination processing, without involving any templates. The additional LPD processing not only makes the resulting samples more visible light responsive, but also results in hollowing the TiO2 nanoparticles (nanosheets vs. hollow nanoparticles). Importantly, commercial TiO2 powder is employed as the starting material to achieve the final synthesis of TiO2 hollow nanoparticles, making it scalable and cost-effective for production and applications. As a by-product, the fluoride, formed during the preparation process, is assumed to play a significant role in hollowing through chemically induced self-transformation and Ostwald ripening, in addition to enhancing the crystallinity. The beneficial structural evolution to the hollow nanoparticles enables the improvement of the photoelectrochemical performance through impressive inhibition of the recombination of the photoelectrons and holes, which is well evidenced by I (ph) and EIS (Nyquist plot), as well as by I-V curve and electron lifetime evaluations as for the assembled DSSCs with the prepared TiO2 hollow nanoparticles under simulated sunlight illumination (50 mW/cm(2)).
WOS关键词	SENSITIZED SOLAR-CELLS ; TITANIUM-DIOXIDE ; GRAPHENE ; PERFORMANCE ; NANOSHEETS ; MICROSPHERES ; DEGRADATION ; NANOSPHERES ; EFFICIENCY ; NANOTUBES
语种	英语
WOS记录号	WOS:000415281400045
资助机构	Open Research Fund of Jiangsu Provincial Key Laboratory of Biomass Energy and Materials(JSBEM201608) ; National Natural Science Foundation of China(51702050) ; Construction Project from Foshan Engineering Technique Research Center(2014GA000355) ; Construction Project from Research Platform of Universities in Foshan City(2014AG10009) ; High-Level Talent Start-Up Research Projects in Foshan University(gg040948 ; Gg040918)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/15859]
专题	中国科学院广州能源研究所
作者单位	1.Foshan Univ, Coll Mat Sci & Energy Engn, Foshan 528000, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yuyuan,Hu, Huawen,Chang, Menglei,et al. Template-free scalable synthesis of TiO2 hollow nanoparticles for excellent photoelectrochemical applications[J]. JOURNAL OF MATERIALS SCIENCE,2018,53(3):2102-2114.
APA	Zhang, Yuyuan.,Hu, Huawen.,Chang, Menglei.,Wei, Hongyang.,Chen, Dongchu.,...&Li, Xinjun.(2018).Template-free scalable synthesis of TiO2 hollow nanoparticles for excellent photoelectrochemical applications.JOURNAL OF MATERIALS SCIENCE,53(3),2102-2114.
MLA	Zhang, Yuyuan,et al."Template-free scalable synthesis of TiO2 hollow nanoparticles for excellent photoelectrochemical applications".JOURNAL OF MATERIALS SCIENCE 53.3(2018):2102-2114.