Carbon Dioxide Gas Sensing with the Combination of Divalent Magnesium Cation and Divalent Oxide Anion Conducting Solid Electrolytes with Neodymium Oxycarbonate Based Auxiliary Electrode

Imanaka, Nobuhito; Kamikawa, Masayuki; Adachi, Gin‐ya

doi:10.1002/1521-4109(200110)13:15<1291::aid-elan1291>3.0.co;2-f

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…First, the sensor output change with the CO 2 content before and after exposure to the water-vapor-saturated atmosphere (50 °C for 8 h, six times) to experience the dew point, was investigated as described in ref . Owing to the extremely high water insolubility characteristics of the present auxiliary electrode, no interference at all was observed after its exposure to such a serious dew point condition (50 °C for 8 h, six times).…”

Section: Resultsmentioning

confidence: 99%

“…The formation of the solid solution was identified by the expansion of the c -axis lattice from 1.5605 to 1.5643 nm while the a -axis lattice held a constant value of 0.3987 nm. Two solid electrolyte pellets were tightly fixed with an inorganic adhesive agent (SUMICERAM 17D, Asahi Chemical Industries Ltd.), and the Li- and Ba-codoped Nd 2 O 2 CO 3 pellet was set on the Mg 2+ ion conducting solid solution electrolyte surface and heated to the operating temperature of 550 °C in the same manner as described in ref . The CO 2 gas content of 1−5% and 200−2000 ppm was prepared by mixing CO 2 −air or 1% CO 2 diluted with a nitrogen−air mixture using a mass flowmeter (KOFLOC, model RK series).…”

Section: Methodsmentioning

confidence: 99%

“…Here, a divalent magnesium cation (Mg 2+ ) conducting phosphate-based solid electrolyte , was combined with a divalent oxide anion (O 2- ) conducting stabilized zirconia based on oxide to form a stable MgO between them, the extremely high stability of which has been already guaranteed as one of representative refractory oxides. In our previous communication, we reported that the above-mentioned sensor with the oxycarbonate auxiliary electrode shows a reproducible response and obeys the Nernst relationship.…”

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confidence: 87%

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A Carbon Dioxide Gas Sensor by Combination of Multivalent Cation and Anion Conductors with a Water-Insoluble Oxycarbonate-Based Auxiliary Electrode

2002

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A compact and inexpensive carbon dioxide gas sensor was successfully realized by the combination of a divalent magnesium ionic conductor of Mg0.7(Zr0.85Nb0.15)4P6O24 and a divalent oxide anion conducting ZrO2-Y2O3 solid electrolyte with the water-insoluble Li- and Ba-codoped Nd2O2CO3 solid solution as the auxiliary electrode. The sensor response was continuous and reproducible, and the present sensor also demonstrated a theoretical Nernst response in the atmosphere where water vapor, nitrogen oxides, ammonia, etc., coexist. The exposure of the present sensor to water dew and variation in oxygen concentration does not interfere with the sensor response, which will be a great advantage in applying the in situ practical CO2 detection in combustion exhaust gas atmospheres.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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confidence: 87%

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A Carbon Dioxide Gas Sensor by Combination of Multivalent Cation and Anion Conductors with a Water-Insoluble Oxycarbonate-Based Auxiliary Electrode

2002

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“…Recently, the small class of oxycarbonates gained growing attention. The introduction of carbonate anions into the crystal structure of oxides turned out to be very advantageous for the tuning of the properties of different advanced materials, such as high-temperature superconductors [1][2][3][4][5][6], red-and greenemitting phosphors [7][8][9][10][11][12], and carbon dioxide sensors [13,14].…”

Section: Introductionmentioning

confidence: 99%

Formation of metastable calcite-type barium carbonate during low-temperature decomposition of (Ba,Ti)-precursor complexes

Ischenko

Woltersdorf

Pippel

et al. 2007

Solid State Sciences

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Ba,Ti)-precursor complexes, important for the production of advanced BaTiO 3 perovskitetype materials, undergo structural transformations and complex reactions during their thermal decomposition. Based on XRD phase analysis, combined with Rietveld refinement of crystal structure data, and on IR analysis, the intermediate formation of calcite-type BaCO 3 is evidenced, which can be explained by the stabilization of this metastable modification in the form of an oxycarbonate phase down to room temperature. Two possible processes, leading to such an oxycarbonate, are discussed: (i) partial substitution of CO 3 2− by O 2− in the anionic sublattice, and (ii) topotaxial formation of calcite-type structural domains of BaCO 3 by templating with oxygen-deficient titanates, resulting in the oxide-carbonate intergrowth structures.

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“…As these optical techniques require a relative elaborate setup, electrochemical methods may be preferable with their advantages of simplicity and low cost. Solid-state potentiometric devices have been presented [3,4].…”

Section: Introductionmentioning

confidence: 99%

Ni(II)cyclam Catalyzed Reduction of CO₂ – Towards a Voltammetric Sensor for the Gas Phase

Jacquinot

Hauser

2003

Electroanalysis

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The detection of CO 2 in the gas phase is possible in presence of oxygen with an amalgamated Au-poly(tetrafluoroethylene) gas diffusion electrode and an internal electrolyte solution containing Ni(II)cyclam. For concentrations between 0.1 to 1% the electrochemical cell has a sensitivity of 3.58 mA % À1 and the detection limit is 500 ppm. In preliminary experiments at rotating disk electrodes the optimum pH-range was found to be between 3.5 to 6 and a selectivity ratio of the catalyst for CO 2 /H of 5 : 1 could be determined. The relationship between reduction current and the square root of the angular speed is linear, indicating that the electrochemical process is limited by diffusion of CO 2 . Tl and Pb are presented as alternative electrode materials at which the Ni(II)cyclam catalyzed reduction of CO 2 can be observed. Problems arise from fouling effects at the sensing electrode and a non-linearity of the calibration plot at higher concentrations.

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Carbon Dioxide Gas Sensing with the Combination of Divalent Magnesium Cation and Divalent Oxide Anion Conducting Solid Electrolytes with Neodymium Oxycarbonate Based Auxiliary Electrode

Cited by 6 publications

References 12 publications

A Carbon Dioxide Gas Sensor by Combination of Multivalent Cation and Anion Conductors with a Water-Insoluble Oxycarbonate-Based Auxiliary Electrode

A Carbon Dioxide Gas Sensor by Combination of Multivalent Cation and Anion Conductors with a Water-Insoluble Oxycarbonate-Based Auxiliary Electrode

Formation of metastable calcite-type barium carbonate during low-temperature decomposition of (Ba,Ti)-precursor complexes

Ni(II)cyclam Catalyzed Reduction of CO₂ – Towards a Voltammetric Sensor for the Gas Phase

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Carbon Dioxide Gas Sensing with the Combination of Divalent Magnesium Cation and Divalent Oxide Anion Conducting Solid Electrolytes with Neodymium Oxycarbonate Based Auxiliary Electrode

Cited by 6 publications

References 12 publications

A Carbon Dioxide Gas Sensor by Combination of Multivalent Cation and Anion Conductors with a Water-Insoluble Oxycarbonate-Based Auxiliary Electrode

A Carbon Dioxide Gas Sensor by Combination of Multivalent Cation and Anion Conductors with a Water-Insoluble Oxycarbonate-Based Auxiliary Electrode

Formation of metastable calcite-type barium carbonate during low-temperature decomposition of (Ba,Ti)-precursor complexes

Ni(II)cyclam Catalyzed Reduction of CO2 – Towards a Voltammetric Sensor for the Gas Phase

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Ni(II)cyclam Catalyzed Reduction of CO₂ – Towards a Voltammetric Sensor for the Gas Phase