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Highly sensitive and low detection limit of ethanol gas sensor based on hollow ZnO/SnO2 spheres composite material.

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Title: Highly sensitive and low detection limit of ethanol gas sensor based on hollow ZnO/SnO2 spheres composite material.
Authors: Liu, Jiangyang1, Wang, Tianshuang1, Wang, Boqun1, Sun, Peng1 spmaster2008@163.com, Yang, Qiuyue1, Liang, Xishuang1, Song, Hongwei1, Lu, Geyu1 lugy@jlu.edu.cn
Source: Sensors & Actuators B: Chemical. Jun2017, Vol. 245, p551-559. 9p.
Subjects: Nanostructured materials synthesis, Zinc oxide, Tin oxides, Gas detectors, Ethanol, X-ray diffraction, Detection limit, X-ray photoelectron spectroscopy
Abstract: Heterostructure ZnO/SnO 2 composites material with a hollow nanostructure was synthesized by solution method. The obtained products were characterized by X-ray diffraction (XRD), field-emission electron scanning microscopy (FESEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results indicated that ZnO nanoparticles could be clearly observed on the surface of SnO 2 hollow spheres and the surface oxygen chemisorbed ability of ZnO/SnO 2 composites was much higher than that of single-component SnO 2 . The as-synthesized composites as sensing material was investigated and the results revealed that such composites had an excellent sensing performance to ethanol, and the response to 30 ppm ethanol was nearly 7-times higher than that of pristine SnO 2 at its optimum temperature. Moreover, it is noteworthy that such gas sensor showed a low detection limit (ppb-level). The enhanced sensing properties might be attributed to the formation of heterojunction and synergistic effect between SnO 2 and ZnO. [ABSTRACT FROM AUTHOR]
Copyright of Sensors & Actuators B: Chemical is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 122414768
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  Data: Highly sensitive and low detection limit of ethanol gas sensor based on hollow ZnO/SnO2 spheres composite material.
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  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Jiangyang%22">Liu, Jiangyang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Tianshuang%22">Wang, Tianshuang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Boqun%22">Wang, Boqun</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sun%2C+Peng%22">Sun, Peng</searchLink><relatesTo>1</relatesTo><i> spmaster2008@163.com</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Qiuyue%22">Yang, Qiuyue</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liang%2C+Xishuang%22">Liang, Xishuang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Song%2C+Hongwei%22">Song, Hongwei</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lu%2C+Geyu%22">Lu, Geyu</searchLink><relatesTo>1</relatesTo><i> lugy@jlu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Sensors+%26+Actuators+B%3A+Chemical%22">Sensors & Actuators B: Chemical</searchLink>. Jun2017, Vol. 245, p551-559. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Nanostructured+materials+synthesis%22">Nanostructured materials synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Zinc+oxide%22">Zinc oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Tin+oxides%22">Tin oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+detectors%22">Gas detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Ethanol%22">Ethanol</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Detection+limit%22">Detection limit</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+photoelectron+spectroscopy%22">X-ray photoelectron spectroscopy</searchLink>
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  Label: Abstract
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  Data: Heterostructure ZnO/SnO 2 composites material with a hollow nanostructure was synthesized by solution method. The obtained products were characterized by X-ray diffraction (XRD), field-emission electron scanning microscopy (FESEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results indicated that ZnO nanoparticles could be clearly observed on the surface of SnO 2 hollow spheres and the surface oxygen chemisorbed ability of ZnO/SnO 2 composites was much higher than that of single-component SnO 2 . The as-synthesized composites as sensing material was investigated and the results revealed that such composites had an excellent sensing performance to ethanol, and the response to 30 ppm ethanol was nearly 7-times higher than that of pristine SnO 2 at its optimum temperature. Moreover, it is noteworthy that such gas sensor showed a low detection limit (ppb-level). The enhanced sensing properties might be attributed to the formation of heterojunction and synergistic effect between SnO 2 and ZnO. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Sensors & Actuators B: Chemical is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.snb.2017.01.148
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 551
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      – SubjectFull: Nanostructured materials synthesis
        Type: general
      – SubjectFull: Zinc oxide
        Type: general
      – SubjectFull: Tin oxides
        Type: general
      – SubjectFull: Gas detectors
        Type: general
      – SubjectFull: Ethanol
        Type: general
      – SubjectFull: X-ray diffraction
        Type: general
      – SubjectFull: Detection limit
        Type: general
      – SubjectFull: X-ray photoelectron spectroscopy
        Type: general
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      – TitleFull: Highly sensitive and low detection limit of ethanol gas sensor based on hollow ZnO/SnO2 spheres composite material.
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            NameFull: Liu, Jiangyang
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            – D: 15
              M: 06
              Text: Jun2017
              Type: published
              Y: 2017
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