ICCAS OpenIR
Polyethylene glycol-directed SnO2 nanowires for enhanced gas-sensing properties
Yin, Ya-Xia1,2; Jiang, Ling-Yan2; Wan, Li-Jun2; Li, Cong-Ju1,3; Guo, Yu-Guo2
2011
Source PublicationNANOSCALE
ISSN2040-3364
Volume3Issue:4Pages:1802-1806
AbstractSnO2 nanowires with lengths in the tens of micrometres range have been synthesized on a large scale via a facile polyethylene glycol-directed method at ambient temperature followed by a suitable thermal treatment of the precursor nanowires. The morphology of the precursor of the SnO2 nanowires is tunable by changing the concentration of either SnCl2 or polyethylene glycol. After calcination, the resulting SnO2 nanowires retain a similar shape to the precursor, but with hierarchical architecture, which can be considered as one-dimensional nanowires assembled by interconnected SnO2 nanoparticles with a high surface-to-volume ratio. The SnO2 nanowires are investigated with XRD, SEM, TEM, and gas sensing tests for detecting CO and H-2. It is found that the present SnO2 nanowires exhibit a remarkable sensitivity and low detection limit (10 ppm for H-2), as well as good reproducibility and short response/recovery times, which benefit from the unique hierarchical structure with a high surface-to-volume ratio and the 3D network formed by the nanowires.
DOI10.1039/c0nr00843e
Indexed BySCI
Language英语
WOS IDWOS:000289306900066
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72854
Collection中国科学院化学研究所
Corresponding AuthorLi, Cong-Ju
Affiliation1.Beijing Univ Chem Technol, Fac Mat Engn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China
3.Coll Mat Sci & Engn, Beijing Inst Fash Technol, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Yin, Ya-Xia,Jiang, Ling-Yan,Wan, Li-Jun,et al. Polyethylene glycol-directed SnO2 nanowires for enhanced gas-sensing properties[J]. NANOSCALE,2011,3(4):1802-1806.
APA Yin, Ya-Xia,Jiang, Ling-Yan,Wan, Li-Jun,Li, Cong-Ju,&Guo, Yu-Guo.(2011).Polyethylene glycol-directed SnO2 nanowires for enhanced gas-sensing properties.NANOSCALE,3(4),1802-1806.
MLA Yin, Ya-Xia,et al."Polyethylene glycol-directed SnO2 nanowires for enhanced gas-sensing properties".NANOSCALE 3.4(2011):1802-1806.
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