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

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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.

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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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Authors and Affiliations

  1. School of Materials Science and Engineering, Cultivating Base for Key Laboratory of Environment-Friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo, 454000, Henan, China

    Ying Wei, Xiaodong Wang, Lixing Zhou, Guang Sun & Bala Hari

  2. College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, Henan, China

    Guiyun Yi & Jianliang Cao

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  1. Ying Wei
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  2. Xiaodong Wang
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  3. Guiyun Yi
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  4. Lixing Zhou
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  5. Jianliang Cao
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  6. Guang Sun
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  7. Bala Hari
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Correspondence to Xiaodong Wang.

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Wei, Y., Wang, X., Yi, G. et al. Synthesis and characterization of monodisperse hollow SnO2 microspheres and their enhanced sensing properties to ethanol. J Porous Mater 25, 1099–1104 (2018). https://doi.org/10.1007/s10934-017-0521-z

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  • DOI: https://doi.org/10.1007/s10934-017-0521-z

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