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. 2009;9(10):8158-96.
doi: 10.3390/s91008158. Epub 2009 Oct 16.

Semiconducting metal oxide based sensors for selective gas pollutant detection

Sofian M Kanan  1 , Oussama M El-Kadri, Imad A Abu-Yousef, Marsha C Kanan
Affiliations

Semiconducting metal oxide based sensors for selective gas pollutant detection

Sofian M Kanan et al. Sensors (Basel). 2009.

Abstract

A review of some papers published in the last fifty years that focus on the semiconducting metal oxide (SMO) based sensors for the selective and sensitive detection of various environmental pollutants is presented.

Keywords: gases; metal oxides; pollutants; selective detection; sensors.

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Figures

Figure 1.
Figure 1.
A general schematic for SMO gas sensor devices.
Figure 2.
Figure 2.
Electrical response of sprayed SnO2 thin films vs. NO2 concentration at 350 °C working temperature. (Reprinted from reference [139] with permission from Elsevier).
Figure 3.
Figure 3.
(a) Gas sensing characteristics of tungsten oxide nanoparticles to 1,000 ppm H2S, and (b) variations in response with concentration of H2S at 250 °C. (Reprinted from reference [165] with permission from Elsevier).
Figure 4.
Figure 4.
SMO sensors' normalized responses to the gases of interest and corresponding LDA. (Reprinted from reference [13] with permission from Elsevier).
Figure 5.
Figure 5.
Sensor response to a three pulse sequence of methanol, t-butanol and DMMP for samples A and C based sensors. (Reprinted from reference [285] with permission from Elsevier).
See this image and copyright information in PMC

References

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    1. Bielanski A., Deren J., Haber J. Electric conductivity and catalytic activity of semiconducting oxide catalysts. Nature. 1957;179:668–669.
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    1. Korotcenkov G. Metal oxides for solid-state gas sensors: What determine our choice? Mater. Sci. Eng. B. 2007;139:1–23.

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