Potentiometric CO2 gas sensor with lithium phosphorous oxynitride electrolyte

Lee, C; Akbar, Sheikh A.; Park, Chong-Ook

doi:10.1016/s0925-4005(01)00902-9

Cited by 59 publications

(27 citation statements)

References 16 publications

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“…For type III sensors, most sodium ion conducting electrolytes such as Na-β-alumina [3] and NASICON [4][5][6] were used in combination with a Na 2 CO 3 auxiliary phase or a mixture of Na 2 CO 3 and Ba 2 CO 3 . Lithium ion conducting electrolytes [7] such as LIPON [8] combined with a lithium carbonate auxiliary phase were also used in type III sensors. Zhang [9] employed Li 2 CO 3 -Li 3 PO 4 -LiAlO 2 solid electrolytes for lithium ions, in contact with two-phase LiCoO 2 -Co 3 O 4 or one-phase pure LiCoO 2 solid reference electrodes.…”

mentioning

confidence: 99%

“…Schäf [11] concluded that a metastable phase is formed on the reference side of electrochemical cells with Li + conducting ceramics as electrolytes and Li 2 CO 3 as sensitive auxiliary electrode. Li + conducting electrolytes such as lithium phosphorous oxynitride (Li 2.88 PO 3.73 N 0.14 ) [12] and Li 3 PO 4 + 5 m/o SiO 2 [13] are also used in CO 2 sensors. So far, firstly, the measuring temperature for the CO 2 detection with the solid electrolyte has to be controlled at 450℃, 550℃, and 650℃ in the cases of β-alumina, NASICON and lithium phosphate-based electrolytes, respectively.…”

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confidence: 99%

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Investigation of gas concentration cell based on LiSiPO electrolyte and Li2CO3, Au electrode

2009

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confidence: 99%

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Investigation of gas concentration cell based on LiSiPO electrolyte and Li2CO3, Au electrode

2009

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“…Electrolyte Na + -ion conducting electrolytes, such as Na 2 CO 3 [34], NASICON [37,39,41], and β-alumina [35,36], and Li + -ion conducting electrolytes, such as lithium phosphorous oxynitride (Li 2.88 PO 3.73 N 0.14 ) [42] and LiTi 2 (PO 4 ) 3 + 0.2Li 3 PO 4 [43], are widely used in CO 2 sensors. NASICON is a silico-phosphate (Na 1+x Zr 2 Si x P 3−x O 12 [0<x<3]), which shows a maximum conductivity at x≈2.…”

Section: Carbon Dioxide Sensormentioning

confidence: 99%

Solid-state electrochemical gas sensors

Park

Fergus

Miura

et al. 2009

Ionics

140

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The solid-state electrochemical principle has been a selective and accurate way of sensing chemical components in various environments, including liquid metal, for an extended period of time. Since after Carl Wagner's interpretation of zirconia, there appeared many advances in chemical sensor applications. The electrochemical techniques for the chemical measurements have, in general, several major advantages compared to other methods. The information of interest is directly converted into electrical signal which may be employed in electronic circuits. Electrochemical measurements are always selective for the quantities that undergo the electrochemical redox reaction. In most cases, reactions at equilibrium are considered, but techniques have also been developed to be able to use kinetic limit. Furthermore, the signal is independent of materials properties, such as the ionic conductivity or impurity as long as it is a predominant ionic conductor. Depending on the type of application, voltage or current measurements are employed. While potentiometric method commonly allows measuring chemical species over a wide range of concentration, amperometric sensors generally cover a quite limited range but have a much higher resolution. In this paper, various principles of electrochemical techniques to measure the chemical quantities are introduced. And there are many examples of the status of researches on electrochemical sensors, such as oxygen sensor, carbon dioxide sensor, NO x sensor, SO x sensor, and hydrogen sensor.

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“…Lithium ion conductors used with Li 2 CO 3 include LISICON [163] and other Li 3 PO 4 -based electrolytes [164][165][166][167][168][169][170][171][172][173]. As with sodium ion conductors, Li 2 CO 3 -containing carbonates are used with lithium ion conductors [174,175].…”

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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Potentiometric CO2 gas sensor with lithium phosphorous oxynitride electrolyte

Cited by 59 publications

References 16 publications

Investigation of gas concentration cell based on LiSiPO electrolyte and Li2CO3, Au electrode

Investigation of gas concentration cell based on LiSiPO electrolyte and Li2CO3, Au electrode

Solid-state electrochemical gas sensors

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

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