Mixed Potential Type  NO  x Sensor Based on Stabilized Zirconia and Oxide Electrode

Miura, Norio; Lu, Geyu; Yamazoe, Noboru; Kurosawa, Hideyuki; Hasei, Masaharu

doi:10.1149/1.1836448

Cited by 131 publications

(46 citation statements)

References 3 publications

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“…Other spinel electrode materials include ZnFe 2 O 4 [327][328][329][330][331] and CdMn 2 O 4 [325]. The outputs of some NO x sensors with spinel electrodes are shown in Figure 13.27 [29,275,309,313,320,324,325,[327][328][329][330].…”

Section: Electrocatalytic Electrodesmentioning

confidence: 99%

“…While sensors used in automotive combustion processes [383][384][385][386] have in the past received the most attention, combustion gas sensors are also important for improving efficiency and NiCr 600ºC [29,328] NiCr 600ºC [275,309] NiCr 700ºC [320] NiCr 700ºC [309] CdCr 500ºC [313] CdCr 500ºC [324,325] CdCr 600ºC [313] ZnFe 600ºC [328][329][330] ZnFe 700ºC [ reducing emissions in other processes, such as glass processing [387,388], liquid petroleum gas (LPG) boilers [389], and even wood burning [390]. The sensors developed for these applications can also be used in other areas, where information on gas compositions is important, such as controlling the atmosphere during sintering [391] or characterizing the gas flow and distribution in a fluidized-bed reactor [392].…”

Section: Gaseous Mediummentioning

confidence: 99%

“…Log [NO 2 ] (ppm)Figure 13.27 Outputs of NO x sensors with spinel electrodes[29,275,309,313,320,324,325,[327][328][329][330].…”

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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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Section: Electrocatalytic Electrodesmentioning

confidence: 99%

Section: Gaseous Mediummentioning

confidence: 99%

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Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Fergus

2009

Solid State Electrochemistry I

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“…Of the various zirconia sensor designs, the mixed potential sensor offers advantages of simple construction for multigas sensing, low-cost packaging, and rapid response time. These sensors use pairs of electrode materials with differential response to the sensed gas, for example CO , [Miura, 1996a], NO x [Miura, 1998b], CO 2 [Imanaka, 2000], H 2 , and hydrocarbons (HCs) . The past work showed the potential for extending zirconia-based sensors for combustion gas sensing.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Nanoceramics for Industrial Process Sensors

Ruud¹,

Brosnan²,

Striker³

et al. 2011

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“…The advantages of the sensor are fast response, portability, low cost and operation at elevated temperatures in a harsh environment. Significant progress has been made towards the development of mixed-potential-type NOx sensors based on YSZ and catalytically active metal-oxide SE [2][3][4][5][6][7][8][9][10][11][12]. Table 1 summarizes various types of oxide-SEs and their NOx sensing characteristics for the mixed-potential-type sensors reported by us over a decade.…”

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Electrochemical NOx sensors based on stabilized zirconia: comparison of sensing performances of mixed-potential-type and impedancemetric NOx sensors

et al. 2006

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A tubular sensor was fabricated by using yttira stabilized zirconia (YSZ) and ZnCr 2 O 4 sensing-electrode (SE) aiming for detection of NOx at high temperature. The sensing characteristics of this YSZ-based sensor were evaluated at 700 • C by means of potentiometric (mixed-potential) and impedancemetric methods with the variation of thickness of SE. A correlation between the thickness and the sensing performances was obtained for both types of NOx sensors. The mixed-potential-type sensor using ZnCr 2 O 4 -SE exhibited high NOx sensitivity when the SE thickness was small (4 μm). On the other hand, the impedancemetric sensor, employing the same oxide-SE, provided almost equal sensitivity to NO and NO 2 when the SE thickness was large (39 μm). In this case, the total concentration of NOx can be measured. The comparison of sensing mechanisms for the both sensors was briefly discussed.

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Mixed Potential Type NO x Sensor Based on Stabilized Zirconia and Oxide Electrode

Cited by 131 publications

References 3 publications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Hierarchical Nanoceramics for Industrial Process Sensors

Electrochemical NOx sensors based on stabilized zirconia: comparison of sensing performances of mixed-potential-type and impedancemetric NOx sensors

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