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Flower-like ZnO hollow microspheres loaded with CdO nanoparticles as high performance sensing material for gas sensors.

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Title: Flower-like ZnO hollow microspheres loaded with CdO nanoparticles as high performance sensing material for gas sensors.
Authors: Wang, Tianshuang1, Kou, Xueying1, Zhao, Liupeng1, Sun, Peng1 spmaster2008@163.com, Liu, Chang1,2,3, Wang, Yue2, Shimanoe, Kengo3, Yamazoe, Noboru3, Lu, Geyu1 181306776@qq.com
Source: Sensors & Actuators B: Chemical. Oct2017, Vol. 250, p692-702. 11p.
Subjects: Nanoparticles, Microspheres, Ethanol, Zinc oxide, Cadmium oxide
Abstract: CdO decorated flower-like ZnO hollow microspheres were successfully prepared via a two-step hydrothermal strategy. CdO nanoparticles (∼12 nm) equably loaded on the surfaces of ZnO nanosheets, which could be clearly observed from SEM and TEM images. The results of X-ray photoelectron spectroscopy and H 2 temperature-programmed reduction (H 2 -TPR) indicated that the amount of chemisorbed oxygen was increased after the introduction of CdO nanoparticles. Compared with the flower-like ZnO hollow microspheres, the 2.6 mol% CdO:ZnO heterostructure composites exhibited highest response (65.5) to 100 ppm ethanol at 250 °C, which was about 16 folder higher than that of pure ZnO at the same operating temperature of 250 °C. Significantly, the detection limit of the 2.6 mol% CdO:ZnO heterostructure could reach ppb level (500 ppb). The mechanism of the enhanced ethanol sensing was also discussed systematically. [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.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 123406420
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  Data: Flower-like ZnO hollow microspheres loaded with CdO nanoparticles as high performance sensing material for gas sensors.
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Tianshuang%22">Wang, Tianshuang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kou%2C+Xueying%22">Kou, Xueying</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Liupeng%22">Zhao, Liupeng</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="%22Liu%2C+Chang%22">Liu, Chang</searchLink><relatesTo>1,2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yue%22">Wang, Yue</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Shimanoe%2C+Kengo%22">Shimanoe, Kengo</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Yamazoe%2C+Noboru%22">Yamazoe, Noboru</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Lu%2C+Geyu%22">Lu, Geyu</searchLink><relatesTo>1</relatesTo><i> 181306776@qq.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Sensors+%26+Actuators+B%3A+Chemical%22">Sensors & Actuators B: Chemical</searchLink>. Oct2017, Vol. 250, p692-702. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Microspheres%22">Microspheres</searchLink><br /><searchLink fieldCode="DE" term="%22Ethanol%22">Ethanol</searchLink><br /><searchLink fieldCode="DE" term="%22Zinc+oxide%22">Zinc oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Cadmium+oxide%22">Cadmium oxide</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: CdO decorated flower-like ZnO hollow microspheres were successfully prepared via a two-step hydrothermal strategy. CdO nanoparticles (∼12 nm) equably loaded on the surfaces of ZnO nanosheets, which could be clearly observed from SEM and TEM images. The results of X-ray photoelectron spectroscopy and H 2 temperature-programmed reduction (H 2 -TPR) indicated that the amount of chemisorbed oxygen was increased after the introduction of CdO nanoparticles. Compared with the flower-like ZnO hollow microspheres, the 2.6 mol% CdO:ZnO heterostructure composites exhibited highest response (65.5) to 100 ppm ethanol at 250 °C, which was about 16 folder higher than that of pure ZnO at the same operating temperature of 250 °C. Significantly, the detection limit of the 2.6 mol% CdO:ZnO heterostructure could reach ppb level (500 ppb). The mechanism of the enhanced ethanol sensing was also discussed systematically. [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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        Value: 10.1016/j.snb.2017.04.099
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      – Code: eng
        Text: English
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        PageCount: 11
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      – SubjectFull: Ethanol
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      – SubjectFull: Zinc oxide
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      – SubjectFull: Cadmium oxide
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      – TitleFull: Flower-like ZnO hollow microspheres loaded with CdO nanoparticles as high performance sensing material for gas sensors.
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            NameFull: Kou, Xueying
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              Text: Oct2017
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              Y: 2017
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