Nitrogen-monoxide sensing with a commercial zirconia lambda gauge biased in amperometric mode

Coillard, Véronique; Juste, L.; Lucat, Claude; Ménil, Francis

doi:10.1088/0957-0233/11/3/307

Cited by 12 publications

(4 citation statements)

References 7 publications

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“…This sensor, which used a bead of sodium lanthanum fluoride silicate as the solid electrolyte, was shown to operate around 550 °C . Similarly, Coillard et al discussed a sensor employing commercial zirconia lambda gauge for the amperometric detection of NO in automobile exhausts at high temperature . As a result of their versatility, solid electrolytes have become important components of amperometric gas sensors.…”

Section: 23 Ceramic Solid Electrolytes At Elevated Temperaturementioning

confidence: 99%

Amperometric Gas SensorsA Review

2008

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Section: 23 Ceramic Solid Electrolytes At Elevated Temperaturementioning

confidence: 99%

Amperometric Gas SensorsA Review

2008

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“…However, amperometric sensors are also used to measure species other than those that are mobile in the electrolyte. For example, oxygen ion-conducting electrolytes, including YSZ [350][351][352][353][354][355][356] and LSGM [357][358][359][360][361], have been used in amperometric sensors for NO detection, in which case the source of oxygen for the electrolyte is NO rather than O 2 . For the amperometric measurement of a reducing species, on the other hand, oxygen can be pumped through the electrolyte to oxidize the reducing gas; consequently, YSZ has been used in amperometric sensors for measuring CO [362] and hydrocarbon gases [363,364].…”

Section: Electrodes For Current-based Sensorsmentioning

confidence: 99%

“…The addition of oxide electrodes, such as CdCr 2 O 4 [354] or MgAl 2 O 4 [355,356], can be used to catalyze the NO decomposition reaction. The decomposition can CO: 450ºC [298] CO: 500ºC [298] CO: 550ºC [298] CO: 600ºC [300] NOx: 800°C [270] NOx: 895°C [297] …”

Section: Electrodes For Current-based Sensorsmentioning

confidence: 99%

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Fergus

2009

Solid State Electrochemistry I

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Solid electrolytes are well suited for use in chemical sensors for high-temperature applications. The first such sensors followed from the use of solid electrolytes for thermodynamic measurements, and are based on galvanic cells, for which the open circuit voltage is related to the concentration of the mobile ionic species, or to another target species through equilibration at the electrode surface. However, sensors can also be based on nonequilibrium, but steady-state, potentials established between electrochemical reactions at the electrode. Another approach is to use the current passing through the electrolyte, rather than the voltage across the electrolyte, as the sensor signal. In this chapter we first describe the different methods for using solid electrolytes in chemical sensors, and then discuss some of the materials challenges and example applications. IntroductionMore than 50 years ago, Kiukkola and Wagner [1] demonstrated that solid electrolytes couldbeusedingalvaniccellstomeasurethethermodynamicpropertiesofoxides.Those pioneering studies subsequently led to the more practical application of solid electrolytes in chemical sensors. The ionic conduction in solid electrolytes is thermally activated and thus its rate increases with increasing temperature; consequently, solid electrolytes are well suited for high-temperature applications. On the other hand, such temperature dependencealsomeansthatsensorsbasedonsolidelectrolytescanrespondsluggishlyor may be inoperable at low temperatures. However, one of the advantages of solid-state devices, such as those based on solid electrolytes, is that they can be miniaturized [2,3]. Decreasingthedevicedimensionsreducesdiffusionlengths,whichinturndecreasesthe response time and thus also the minimum operating temperature.Ionic conducting solids can be used in a variety of different types of sensor [4][5][6][7][8][9][10][11][12]. Solids forwhichthe ionicconductivity is much largerthanthe electronic conductivity can Solid State Electrochemistry I: Fundamentals, Materials and their Applications. Edited by Vladislav V. Kharton

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“…Therefore, it is necessary to develop high performance NO 2 sensors for monitoring the exhaust gas from automobiles and factories. For this purpose, a special attention has been paid to the solid electrolyte type NO 2 sensors which are available on detection of NO 2 using either the potentiometric [3][4][5][6][7][8], the impedancemetric [9][10][11][12][13][14] or the amperometric mode [15][16][17][18][19][20] with fast response, high sensibility and good stability.…”

Section: Introductionmentioning

confidence: 99%