Solid‐State Detectors for the Potentiometric Determination of Gaseous Oxides: II . Measurements in Oxygen‐Variable Gases in the , , , System

Gauthier, Michel; Chamberland, A.; Bélanger, André; Poirier, M.

doi:10.1149/1.2133114

Cited by 69 publications

(33 citation statements)

References 2 publications

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“…The cell emf was identical to that observed [br a Na2SO4 based electrolyte [ 18,19], because Na-~-A1203 reacted with SO~ to form the active component Na_,SO4 on the surface during operation. The cell can be expressed as The response behaviour and the working mechanism of the sensor are reported in this paper.…”

Section: Pt Ag[ Ag2so4 (25%)-li~so4(75%) [So2 02 Pt (Cell I)supporting

confidence: 72%

“…The first SOn sensor was based on a SO_, concentration cell, which was proposed by Gauthier et al [1] in which K2SO4 was used as the electrolyte. Furthermore, Gauthier et al [2] investigated various sensors by selecting different reference materials, such as a SO2-containing gas, Ag + Ag2SO 4 or MgO + MgSO4, but stable signals were obtained only when a gas reference was used.…”

Section: Introductionmentioning

confidence: 99%

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An all-solid-state potentiometric SO2 gas sensor with solid reference electrode

Kumar

2003

Ionics

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Abstract. A SO, sensor based on Na-I3-A120~ interfaced with an auxiliary electrode of Na2SO 4 formed in-situ and a solid mixture of Fe304, Fe2Os, 3Na20"5FezO3 as the reference electrode was developed. The sensor displayed a good response to changes in the partial pressure of SOt with a linear relationship between the measured emf and the logarithmic values of the partial pressure of SO2, as predicted by the Nernstian equation. Using an electron probe X-ray microanalyser, the formation of a Na2SO 4 reaction layer was confirmed on the surface of Na-~-A1203 tube due to surface reaction with the SO2 gas.

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Section: Pt Ag[ Ag2so4 (25%)-li~so4(75%) [So2 02 Pt (Cell I)supporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

An all-solid-state potentiometric SO2 gas sensor with solid reference electrode

Kumar

2003

Ionics

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“…With the availability of additional vacancies created by CdHgI 4 substitution, in the cubic phase of the host lattice CuI, the Cu + ions move through the lattice with a high elementary hopping probability (Ganthiaer & Chamberland, 1979. The increasing vacancy concentrations due to partial replacement of Cu + creates additional migration paths for Cu + , which in turn increases the conductivity.…”

Section: Resultsmentioning

confidence: 99%

Electrical Conductivity Behavior of CdHgI4 – CuI Mixed System

Siraj¹,

Rafiuddin²

2011

IJC

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In this paper the electrical conductivity behaviour in CdHgI 4 -CuI mixed system were investigated. The mixed system were prepared by mixing CdHgI 4 with CuI in different mol% (10:90, 20:80, 30:70, 40:60 and 50:50 ratios). It was observed that the conductivity of 10:90 CdHgI 4 -CuI mixed system were higher than the other system. This increase in conductivity is due to the availability of additional vacancies created by addition of CdHgI 4 in CuI, but above 10mol% CdHgI 4 the conductivity of mixed system decreased due to the reduction in the mobility of Cu + ion following vacancy interactions. Activation energy data also suggested the higher conductivity for 10:90 mol% mixed system.

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“…As the importance of controlling CO sensor is required from the point of simplicity, low price and quantitative characteristic [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Bi-electrolyte Carbon Dioxide Gas Sensor Based on Paste Sodium-Beta Alumina and Yttria-stabilized Zirconia

Han¹,

Park²

2014

Journal of Sensor Science and Technology

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CO 2 sensor was used only one solid electrolyte in many cases. To improve the sensing characteristics of CO 2 sensors, solid electrolyte CO 2 sensor has been developed by bi-electrolyte type sensor using Na-Beta-alumina and YSZ. However, in many further studies, bielectrolyte type sensor was made by pellet pressed by press machine and additional treatment for formation of interface. In the aspect of mass production, using thick film and additional treatment is not suitable. In this study, CO 2 sensor was fabricated by bi-electrolyte structure which was made by an NBA paste layer deposited on YSZ pellet and fired at 1650 o C for 2 hour. The formation of stable interface between YSZ and NBA were confirmed by SEM image. When the type IV electrochemical cell arrangement represented by CO 2 ,O 2 ,Pt| Li 2 CO 3 -CaCO 3 ||NBA||YSZ|O 2 ,Pt is used to measure the CO 2 concentration in air. This sensor EMF should depend only on the concentration of CO 2 by logarithmic. Also, sensor shows P CO 2 and EMF relationship like nerstian reaction at a temperature of 450 o C.

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Solid‐State Detectors for the Potentiometric Determination of Gaseous Oxides: II . Measurements in Oxygen‐Variable Gases in the , , , System

Cited by 69 publications

References 2 publications

An all-solid-state potentiometric SO2 gas sensor with solid reference electrode

An all-solid-state potentiometric SO2 gas sensor with solid reference electrode

Electrical Conductivity Behavior of CdHgI4 – CuI Mixed System

Bi-electrolyte Carbon Dioxide Gas Sensor Based on Paste Sodium-Beta Alumina and Yttria-stabilized Zirconia

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