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Micro-structure of graphite-intercalated tin oxide and its influence on SnO2-based gas sensors

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Abstract

A nano-scaled graphite oxide (GO) was prepared with a micro-layer structure for intercalation. Graphite-intercalated SnO2 was obtained at temperatures lower than 100°C. The morphology, microstructure, crystalline phases and thermal property of this intercalative composite were studied by atomic force microscopy (AFM), field-emission scanning electron microscopy (FE-SEM), X-ray diffractometry (XRD) and differential scanning calorimetry-thermogravimetry (DSC-TG) doped with a proper amount of graphite-intercalated composites (GITs), GIT-SnO2 composite was obtained after heat treatment. This combined gas sensor reveals low resistance and high sensitivity to butane between 200°C and 300°C.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Tongji University, Shanghai, 200092, China

    Zhang Yinhong & He Yunqiu

Authors
  1. Zhang Yinhong
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  2. He Yunqiu
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Correspondence to He Yunqiu.

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Translated from Journal of Materials Science & Engineering, 2006, 24(4): 582–587 (in Chinese)

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Zhang, Y., He, Y. Micro-structure of graphite-intercalated tin oxide and its influence on SnO2-based gas sensors. Front. Mater. Sci. China 1, 297–303 (2007). https://doi.org/10.1007/s11706-007-0054-5

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  • DOI: https://doi.org/10.1007/s11706-007-0054-5

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