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Vol. 34, No. 8(3), S&M3042

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Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials, Volume 26, Number 9 (2014)
Copyright(C) MYU K.K.
pp. 649-663
S&M1031 Research Paper
https://doi.org/10.18494/SAM.2014.931
Published: November 18, 2014

Gas Sensing Properties and In Situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy Study of Acetone Adsorption and Reactions on SnO2 Films [PDF]

Zhenxin Zhang, Kaijin Huang, Fangli Yuan and Changsheng Xie

(Received July 26, 2013; Accepted February 10, 2014)

Keywords: flat-type coplanar gas sensor arrays, acetone, SnO2 films, in situ DRIFTS

SnO2 flat-type coplanar gas sensor arrays were fabricated by a screen-printing technique based on SnO2 nanopowders prepared by a sol-gel method. The SnO2 flat-type coplanar gas sensor arrays had good acetone gas-sensing characteristics such as a fast response, short recovery time, and an almost linear response to acetone concentration of 1−100 ppm. The response could reach 2.11 for acetone concentration as low as 1 ppm, and the response and recovery times for 1 ppm acetone were 8.9 and 10 s, respectively. The surface reactions were investigated by in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) at different temperatures, and a possible sensing mechanism was proposed. Formate, acetate, carbonate ions, CH3O(ads), CO2, H2O, and adsorbed acetone were detected when the SnO2 flims were exposed to 100 ppm acetone at different temperatures.

Corresponding author: Kaijin Huang


Cite this article
Zhenxin Zhang, Kaijin Huang, Fangli Yuan and Changsheng Xie, Gas Sensing Properties and In Situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy Study of Acetone Adsorption and Reactions on SnO2 Films, Sens. Mater., Vol. 26, No. 9, 2014, p. 649-663.



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