Sensors 2011, 11(4), 4425-4437; doi:10.3390/s110404425
Article

Oxidation of Hydrocarbons on the Surface of Tin Dioxide Chemical Sensors

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Received: 2 March 2011; in revised form: 1 April 2011 / Accepted: 6 April 2011 / Published: 15 April 2011
(This article belongs to the Special Issue Gas Sensors - 2010)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The paper presents the results of our investigation on the effect of the molecular structure of organic vapors on the characteristics of resistive chemical gas sensors. The sensors were based on tin dioxide and prepared by means of thick film technology. The electrical and catalytic examinations showed that the abstraction of two hydrogen atoms from the organic molecule and formation of a water in result of reaction with a chemisorbed oxygen ion, determine the rate of oxidation reactions, and thus the sensor performance. The rate of the process depends on the order of carbon atoms and Lewis acidity of the molecule. Therefore, any modification of the surface centers of a sensor material, modifies not only the sensor sensitivity, but also its selectivity.
Keywords: gas sensor; molecular structure; alcohol; oxidation reaction; Lewis acidity
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MDPI and ACS Style

Teterycz, H.; Halek, P.; Wiśniewski, K.; Halek, G.; Koźlecki, T.; Polowczyk, I. Oxidation of Hydrocarbons on the Surface of Tin Dioxide Chemical Sensors. Sensors 2011, 11, 4425-4437.

AMA Style

Teterycz H, Halek P, Wiśniewski K, Halek G, Koźlecki T, Polowczyk I. Oxidation of Hydrocarbons on the Surface of Tin Dioxide Chemical Sensors. Sensors. 2011; 11(4):4425-4437.

Chicago/Turabian Style

Teterycz, Helena; Halek, Patryk; Wiśniewski, Kamil; Halek, Grzegorz; Koźlecki, Tomasz; Polowczyk, Izabela. 2011. "Oxidation of Hydrocarbons on the Surface of Tin Dioxide Chemical Sensors." Sensors 11, no. 4: 4425-4437.

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