Characterization of Pt,O2|YSZ electrodes for lambda probes and their ageing in humid atmosphere

Flegel, Elke; Vonau, C.; Guth, U.

doi:10.1515/teme-2016-0079

Cited by 3 publications

(3 citation statements)

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“…2d-f). According to the literature (Mogensen, 2002;Hauch et al, 2007;Hertz et al, 2009;Mutoro et al, 2009Mutoro et al, , 2010, this leads to a lower exchange current density. It makes other oxygen exchange mechanisms conceivable as well.…”

Section: Processes During Polarizationmentioning

confidence: 99%

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Influence of Pt paste and the firing temperature of screen-printed electrodes on the NO detection by pulsed polarization

Donker¹,

Ruchets²,

Schönauer-Kamin³

et al. 2020

J. Sens. Sens. Syst.

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Abstract. Symmetrical Pt|YSZ|Pt sensors were produced by screen printing with frit-containing and fritless Pt pastes and fired at 950, 1100, and 1300 ∘C. Subsequently, the sensors were operated by pulsed polarization, and the NO sensitivity was investigated. The sensitivity of the sensors with fritless pastes was found to be significantly higher. The influence of the firing temperature was low in contrast to the influence of the paste. The low NO sensitivity of the frit-containing electrodes was attributed to a blocking effect that probably occurs at the triple-phase boundaries. Therefore, the oxygen transport through the sensor is inhibited, which, however, seems to be necessary for the sensor effect.

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Section: Processes During Polarizationmentioning

confidence: 99%

“…Although no 3D reconstruction of the three-phase boundaries and the electrodes was performed as in Flegel et al (2017), it can be assumed that, for sensors made of fritcontaining paste, a large part of the three-phase boundaries is blocked by the frit (see Fig. 2d-f).…”

Section: Processes During Polarizationmentioning

confidence: 99%

Influence of Pt paste and the firing temperature of screen-printed electrodes on the NO detection by pulsed polarization

Donker¹,

Ruchets²,

Schönauer-Kamin³

et al. 2020

J. Sens. Sens. Syst.

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“…Sometimes the load of the flue gas with sulfur cause problems regarding the poisoning of electrode material [13]. Hence, nowadays there are only few research activities in this field [14].…”

Section: Solid Electrolyte Sensorsmentioning

confidence: 99%

Gas sensing technologies in combustion: A comprehensive review

Guth¹,

Shuk

McGuire

2020

J. Electrochem. Sci. Eng.

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Irrespective of the change in kind of energy to renewables there are many processes in which combustion of conventional fuels and biofuel are necessary. For cement and glass production, paper fabrication and air traffic it is absolutely essential to control the combustion processes by intelligent sensors in order to maximize the efficiency and to minimize the emission of harmful substances such as NOx and CO. Mainly oxygen sensors based on solid electrolytes and calorimetric sensors using the heat formation by catalytic combustion of CO and hydrocarbons with two resistance temperature detectors (RTD) are utilized. Recently, tunable diode laser spectroscopy (TDLS) became attractive in chemical plants. Several analytical companies are offering in-situ or extractive laser analyzers for combustion gases.

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Study of response and recovery rate of YSZ-based electrochemical sensor by laser ablation method

Lin

Cheng

Zou

et al. 2020

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Characterization of Pt,O₂|YSZ electrodes for lambda probes and their ageing in humid atmosphere

Cited by 3 publications

References 0 publications

Influence of Pt paste and the firing temperature of screen-printed electrodes on the NO detection by pulsed polarization

Influence of Pt paste and the firing temperature of screen-printed electrodes on the NO detection by pulsed polarization

Gas sensing technologies in combustion: A comprehensive review

Study of response and recovery rate of YSZ-based electrochemical sensor by laser ablation method

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