Suppression of NO and SO2 cross-sensitivity in electrochemical CO2 sensors with filter layers

Hong, Hye Jin; Kim, Jun Woong; Jung, Sung-Yoon; Park, Chong Ook

doi:10.1016/j.snb.2005.01.056

Cited by 14 publications

(7 citation statements)

References 15 publications

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“…As long as the auxiliary electrode contains Na 2 CO 3 , the electrode reaction will be the same, even though the activity of Na 2 CO 3 may be less than one. Na 2 CO 3 is most commonly mixed with BaCO 3 [90,91,140,141,[148][149][150][151][152][153][154][155][156][157][158], but Na 2 CO 3 -SrCO 3 [159] and Na 2 CO 3 -CaCO 3 [160] have also been used as auxiliary electrodes. When used with a sodium ion-conducting electrolyte, the alkaline-earth carbonate is not involved in the electrode reaction.…”

Section: Auxiliary Electrodesmentioning

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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Section: Auxiliary Electrodesmentioning

confidence: 99%

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Fergus

2009

Solid State Electrochemistry I

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“…[5][6][7] These types of devices have also been reported with other carbonate materials such as sodium carbonate, Na 2 CO 2 , [8][9][10][11] or binary carbonate systems. [11][12][13] The low solubility in water of Li 2 CO 3 compared to other alkali metal carbonates makes Li 2 CO 3 an interesting material for applications where humidity is present. 14 Some studies have tried to shed light on the behaviour and electrical conductivity of Li 2 CO 3 , especially in terms of its influence as a solid electrolyte interphase (SEI) in Li ion batteries.…”

Section: Introductionmentioning

confidence: 99%

Li₂CO₃thin films fabricated by sputtering techniques: the role of temperature on their properties

et al. 2014

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“…Electrochemical potentiometricCO 2 sensors using solid electrolytesare the most promising among the various methodsfor the detection of carbon dioxide because of their compactstructure, high selectivity, low cost, and the ability of continuousmonitoring [7]. Planar type photentiometric solid-state(P-PSS) type has been utilized for CO 2 gas sensor by virtue of its low price but it is composed of a reference and a sensing material.…”

Section: Introductionmentioning

confidence: 99%

5.5.6 Stacked Type Potentiometric Solid-State CO2 Gas Sensor for Miniaturization

Choi¹,

Lee²,

Moon³

et al. 2012

Proceedings IMCS 2012

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Suppression of NO and SO2 cross-sensitivity in electrochemical CO2 sensors with filter layers

Cited by 14 publications

References 15 publications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Li₂CO₃thin films fabricated by sputtering techniques: the role of temperature on their properties

5.5.6 Stacked Type Potentiometric Solid-State CO2 Gas Sensor for Miniaturization

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Suppression of NO and SO2 cross-sensitivity in electrochemical CO2 sensors with filter layers

Cited by 14 publications

References 15 publications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Li2CO3thin films fabricated by sputtering techniques: the role of temperature on their properties

5.5.6 Stacked Type Potentiometric Solid-State CO2 Gas Sensor for Miniaturization

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Li₂CO₃thin films fabricated by sputtering techniques: the role of temperature on their properties