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One-Dimensional MoS2-Decorated TiO2 nanotube gas sensors for efficient alcohol sensing
Zhao P.X.1; Tang Y.1; Mao J.1; Chen Y.X.1; Song H.1; Wang J.W.1; Song Y.1; Liang Y.Q.1; Zhang X.M.2
2016-07-25
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume674Pages:252-258
AbstractOne-Dimensional (1D) MoS-decorated TiO nanotubes were synthesized by the anodization of TiO nanotubes followed by a hydrothermal process for MoS-decoration. The structure, morphology and surface characteristics of the MoS-TiO composites were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and Brunauer-Emmett-Teller (BET). The results showed that TiO nanotubes can be filled and covered by flake-like MoS nanostructure. The numbers of the MoS layers ranged from 1 to 3. The TiO nanotube sensor shows a normal n-type response to reducing ethanol gas, whereas MoS-TiO exhibits p-type response with excellent sensing performances. Specially, the sensitivity for the MoS-TiO heterojunction increased almost 11 times than TiO nanotubes. This conversion of sensing behavior can be explained by the formation of p-n heterojunction structures.
KeywordGas sensor MoS2 p-n heterojunction TiO2 nanotubes
DOI10.1016/j.jallcom.2016.03.029
URLView the original
Language英語
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Cited Times [WOS]:58   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Tianjin University
2.Tianjin Product Quality Inspection Technology Research
3.Tianjin Key Laboratory of Composite and Functional Materials
Recommended Citation
GB/T 7714
Zhao P.X.,Tang Y.,Mao J.,et al. One-Dimensional MoS2-Decorated TiO2 nanotube gas sensors for efficient alcohol sensing[J]. Journal of Alloys and Compounds,2016,674:252-258.
APA Zhao P.X..,Tang Y..,Mao J..,Chen Y.X..,Song H..,...&Zhang X.M..(2016).One-Dimensional MoS2-Decorated TiO2 nanotube gas sensors for efficient alcohol sensing.Journal of Alloys and Compounds,674,252-258.
MLA Zhao P.X.,et al."One-Dimensional MoS2-Decorated TiO2 nanotube gas sensors for efficient alcohol sensing".Journal of Alloys and Compounds 674(2016):252-258.
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