Comparison of thin- and thick-film CO2 sensors

Leonhard, Victoria; Fischer, Dennis; Erdmann, Helmut; Ilgenstein, M.; Köppen, H.

doi:10.1016/0925-4005(93)85078-o

Cited by 19 publications

(8 citation statements)

References 6 publications

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“…The outputs of some CO 2 and SO 2 sensors using both NASICON and b alumina are shown in Figure 13.7 [88][89][90][91]. The auxiliary electrodes used are given in the figure, but these will be discussed in more detail later.…”

Section: /T (K -1 )mentioning

confidence: 99%

“…The reference electrode for an electrochemical 709°C [88] 512°C [90] 508°C [89] 553°C [89] 560°C [91] log gas sensor can be the same as the working electrode, except that a gas of known composition is passed over the reference electrode. Such a gas-phase electrode requires two gas supplies that must be separated ( Figure 13.9a); this complicates the sensor design and creates challenges in the development of satisfactory, gas-tight seals.…”

Section: Reference Electrodesmentioning

confidence: 99%

“…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%

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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: /T (K -1 )mentioning

confidence: 99%

Section: Reference Electrodesmentioning

confidence: 99%

Section: Auxiliary Electrodesmentioning

confidence: 99%

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Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Fergus

2009

Solid State Electrochemistry I

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“…A tecnologia de "screen-printing" é as vezes utilizada em conjunto com outras tecnologias [136][137][138][139][140][141][142][143] . Lampe et al 137 , p.…”

Section: Sensores Para Gases Vapores E Umidadeunclassified

“…Há um grande número de publicações recentes explorando a tecnologia de "screen-printing" para o desenvolvimento de sensores eletroquímicos de gases como oxigênio 69,112,141,[144][145][146] , gás sulfídrico 65,[147][148][149][150][151][152][153] , gás carbônico 139,144,146,154,155 , monóxido de carbono 137,140,146,153,[156][157][158][159][160][161][162][163][164][165][166][167] , hidrogênio 144,159,[167][168][169][170] , hidrocarbonetos 135,143,146,157,159,160,162,…”

Section: Sensores Para Gases Vapores E Umidadeunclassified

Eletrodos fabricados por "silk-screen"

Nascimento¹,

Angnes²

1998

Quím. Nova

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Recebido em 6/11/97; aceito em 12/1/98 SCREEN-PRINTED ELECTRODES. A review dealing with the use of screen-printing technology to manufacture disposable electrodes is presented, covering in details virtually all the publications in the area up to early 1997 and including 206 references. The elements and different strategies on constructing modified electrodes are highlighted. Commercial and Home-made ink recipes are discussed. Microelectrode arrays, built by the combination of photostructuring and screen-printing technologies to the mass production of advanced disposable sensors, are also discussed. Future research trends are predicted.

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Advances in Materials for Sensors

Mergui

1995

MCM C/Mixed Technologies and Thick Film Sensors

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Comparison of thin- and thick-film CO2 sensors

Cited by 19 publications

References 6 publications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Eletrodos fabricados por "silk-screen"

Advances in Materials for Sensors

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