Oxygen gas sensor

Beie, H. J. Gnorich, A. 1991. Oxygen gas sensors based on Ce02 thick and thin films. Sens. Actuators B 4 393-399. 

Lambda probe — The so-called lambda probe (lambda sensor) is a potentiometric oxygen - gas sensor that is used to monitor the partial pressure of oxygen po2 (oxygen concentration), e.g., in the exhaust gas of cars in order to control the air/fuel ratio that is going to the internal combustion engine. The term lambda originates from the stoichiometry number A which describes the composition of the air/fuel mixture, as follows ... 

Eguchi, T. and Kuwano, J. (1995) Towards a room temperature, solid state, oxygen gas sensor. Mater. Res. Bull., 30 (11), 1351-7. 

Chowdhury, A.K.M.S.S. et al., A rugged oxygen gas sensor with solid reference for high temperature applications, J. Electrochem. Soc. 148 (2001) G91-G94. 

R.K. Sharma, M.C. Bhatnagar, G.L. Sharma, Mechanism of highly sensitive and fast response Cr doped Ti02 oxygen gas sensor . Sensors and Actuators B Chemical, 45, 209-215, (1997). 

Since the doped Zr02 solid electrolyte (an oxygen ion conductor) oxygen gas sensors were successfully applied in the exhaust system of almost all modern automobiles in the mid-1990s, the other gases CO, NO, and short-chain hydrocarbons have been paid attention to closely [67]. Solid electrolyte gas sensors based on potentiometric have various configurations. Three types have been classified by Weppner, depending on whether the ionic species derived from the gas in question coincides with the mobile ion (Type I), the immobile ion (Type II), or neither of them (Type III) of the solid electrolyte used [68]. 

FIGURE 1.19 Relative resistance of synthesized nanosized SrTiOj-based sample for different annealing temperatures. (Reprinted from Sens. Actuators B, 108, Hu Y., Tan O. K., Pan J. S., Huang H., and Cao W., The effects of annealing temperature on the sensing properties of low temperature nano-sized SrTiOj oxygen gas sensor, 244-249, 2005, with permission from Elsevier.)... 

Tan O. K., Hu Y, and Pan J. S., Electrical conduction properties of nano-sized SrTiOj semiconductor for low temperature resistive oxygen gas sensor, the 10th International Meeting on Chemical Sensors Chemical Sensors, Vol. 20, Supplement B, Tsukuba, Japan, 16, 2004. 

Li Y. X., Galatsis K., Wlodarski W., Ghantasala M., Russo S., Gorman J., Santucci S., and Passacantando M., Micro structure characterization of sol-gel prepared MoOj-TiOj thin films for oxygen gas sensors, J. Vacuum Sci. TechnoL, A-Vacuum Sutfaces Films, 19, 904-909, 2001. 

Izu N., Shin W., and Murayama N., Fast response of resistive-type oxygen gas sensors based on nano-sized ceria powder, Sens. Actuators B, 93, 449 53, 2003. 

J. Mizusaki, K. Amano, S. Yamuchi, and K. Fueki [1983] Response and Electrode Reaction of Zirconia Oxygen Gas Sensor, in Analytical Chemistry Symposium Series, Vol. 17, Elsevier, New York, pp. 279-284. 

Sensor performance for different applications is defined by various features of the ceramic. For example, the electrical output of most pressure sensors is dependent on the bulk piezoelectric properties of a PZT ceramic. Oxygen gas sensor performance is defined by the conductivity behavior of Zr02 ceramics, which is in turn dependent on the oxygen vacancy content of the material. The performance of still other sensors, for example, ceramic thermistors, is dependent on the grain boundary characteristics of doped BaTi03 ceramics. For humidity sensors based on NiO/ZnO, the p—n junction characteristics of the interface define sensor performance. 

Mascell WC (1987) Inorganic solid state chemically sensitive devices electrochemical oxygen gas sensors. J Phys E Sci Instrum 20 1156-1168... 

Masked WC, Steele BCH (1986) Solid state potentiometric oxygen gas sensors. J Appl Electrochem 16(4) 475 89... 

Yamazoe N, Miura N (1996) Prospect and problems of sohd electrolyte-based oxygenic gas sensors. Solid State Ionics 86-88 987-993... 

Moos R, Izu N, Rettig F, ReiB S, Shin W, Matsubara I (2011) Resistive oxygen gas sensors for harsh environments. Sensors 11 3439-3465... 

Moon PK, Tuller HL (1990) Evaluation of the Gd2(ZrxTii x)207 pyroclore system as an oxygen Gas sensor. Sens Actuators B Chem 1 199-202... 

Jeong, C.-H., et al.. Application of the channel optical waveguide prepared by ion exchange method to the preparation and characterization of an optical oxygen gas sensor. Sensors and Actuators B Chemical, 2005.105(2) p. 214-218. 

Fig. 7. Cross-sectional view of the oxygen gas sensor for automobiles (Azad et al. 1992). (Reprinted by permission of the publisher, The Electrochemical Society Inc.)...

An attempt has been made to measure oxygen concentration by using a fluorine conducting electrolyte (Yamazoe et al. 1987, Miura et al. 1987, 1989, Kuwata et al. 1984a,b). Yamazoe et al. (1987) proposed an oxygen gas sensor with a lanthanum fluoride single crystal electrolyte. Lanthanum fluoride is feasible in an aqueous environment and has been used to detect dissolved oxygen in water. 

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