Fabrication of ZnO nanorod-assembled multishelled hollow spheres and enhanced performance in gas sensor

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	Fabrication of ZnO nanorod-assembled multishelled hollow spheres and enhanced performance in gas sensor
	Hu, Peng; Han, Ning; Zhang, Xing; Yao, Mingshui; Cao, Yuebin; Zuo, Ahui; Yang, Gang; Yuan, Fangli
刊名	JOURNAL OF MATERIALS CHEMISTRY
	2011
卷号	21 期号:37 页码:14277-14284
关键词	SENSING PROPERTY NANOPARTICLES MICROSPHERES OXIDE FILMS TEMPLATES PROTEINS ARRAYS
ISSN号	0959-9428
通讯作者	Yuan, FL
英文摘要	In this work, ZnO multishelled hollow spheres with an average diameter of 5 mu m were prepared by a facile solvothermal process in a ternary solvent system including water, ethanol and ethylene, and assynthesized products were constructed by highly directional interactions of anisotropic single-crystalline ZnO nanorods. A two-step assembly process followed symmetric Ostwald ripening process is proposed to explain the formation mechanism of obtained products, which highlights the driving force of the solvents in promoting the nanorod aggregation and the solid evacuation of final products. Scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and high-resolution transmission electron microscopy were used to characterize the structure of synthesized products. The investigation of the gas-sensing properties indicated that control of the shape-defined building units and their assembled structure provides ZnO with high performance in gas sensing, and the double-wall hollow structures exhibit the highest sensitivity to formaldehyde gas than the nanorods and hollow spheres, which is contributed to their high donor-related and the low acceptor-related intrinsic defects in ZnO crystals.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Materials Science
关键词[WOS]	SENSING PROPERTY ; NANOPARTICLES ; MICROSPHERES ; OXIDE ; FILMS ; TEMPLATES ; PROTEINS ; ARRAYS
收录类别	SCI
语种	英语
WOS记录号	WOS:000294502400026
公开日期	2013-10-31
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/4637]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Hu, Peng,Han, Ning,Zhang, Xing,et al. Fabrication of ZnO nanorod-assembled multishelled hollow spheres and enhanced performance in gas sensor[J]. JOURNAL OF MATERIALS CHEMISTRY,2011,21(37):14277-14284.
APA	Hu, Peng.,Han, Ning.,Zhang, Xing.,Yao, Mingshui.,Cao, Yuebin.,...&Yuan, Fangli.(2011).Fabrication of ZnO nanorod-assembled multishelled hollow spheres and enhanced performance in gas sensor.JOURNAL OF MATERIALS CHEMISTRY,21(37),14277-14284.
MLA	Hu, Peng,et al."Fabrication of ZnO nanorod-assembled multishelled hollow spheres and enhanced performance in gas sensor".JOURNAL OF MATERIALS CHEMISTRY 21.37(2011):14277-14284.