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Journal of Porous Materials

, Volume 25, Issue 4, pp 1099–1104 | Cite as

Synthesis and characterization of monodisperse hollow SnO2 microspheres and their enhanced sensing properties to ethanol

  • Ying Wei
  • Xiaodong Wang
  • Guiyun Yi
  • Lixing Zhou
  • Jianliang Cao
  • Guang Sun
  • Bala Hari
Article
  • 97 Downloads

Abstract

The monodisperse hollow SnO2 (H-SnO2) microspheres were successfully synthesized by the ion exchange method using sulfonated PS microspheres as a template. The structure and morphology were characterized by X-ray diffraction, transmission electron microscopy and high-resolution transmission electron microscopy, which confirms the hollow structure of the products. The H-SnO2 microspheres are composed of numerous SnO2 nanoparticles with a shell thickness of about 13 nm. The monodisperse H-SnO2 microspheres have a high specific surface area of 55.54 m2/g, which improves the gas sensing properties toward ethanol. Gas-sensing measurement results indicate that H-SnO2 microspheres exhibit an excellent sensitivity (103.1) toward 200 ppm ethanol at 260 °C, which is much higher than that (65.8) of SnO2 nanoparticles.

Keywords

Monodisperse Hollow microspheres Sensors X-ray techniques Ethanol 

Notes

Acknowledgements

This work is supported by the National Natural Science Foundation of China (51404097, 61474038, U1404613) and Key Scientific Research Projects of Henan Higher Education (16A150009).

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Ying Wei
    • 1
  • Xiaodong Wang
    • 1
  • Guiyun Yi
    • 2
  • Lixing Zhou
    • 1
  • Jianliang Cao
    • 2
  • Guang Sun
    • 1
  • Bala Hari
    • 1
  1. 1.School of Materials Science and Engineering, Cultivating Base for Key Laboratory of Environment-Friendly Inorganic Materials in University of Henan ProvinceHenan Polytechnic UniversityJiaozuoChina
  2. 2.College of Chemistry and Chemical EngineeringHenan Polytechnic UniversityJiaozuoChina

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