Nonideal Electromotive Force of Zirconia Sensors for Unsaturated Hydrocarbon Gases

Hibino, Takashi; Kuwahara, Yoshitaka; Wang, Shuqiang; Kakimoto, Shiro; Sano, Mitsuru

doi:10.1149/1.1390683

Cited by 41 publications

(49 citation statements)

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“…For both electrodes, the magnitude of the response increases with decreasing size of the gas molecule. Similar trends are observed for other electrodes [71,72]. One effect of the molecule size is the number of carbon atoms per molecule, since the number of electrons used is proportional to the number of carbon atoms oxidized to CO or CO 2 .…”

Section: Selectivitysupporting

confidence: 78%

“…The relative responses to different hydrocarbons also vary among electrode materials. For most electrodes the response to propylene is stronger than that to propane [27,28,51,[69][70][71][72][73][74], but La 0.8 Sr 0.2 CrO 3 on YSZ responds more strongly to propane [75]. As with CO and C 3 H 6 , temperature can be used to change the relative response to different hydrocarbons.…”

Section: Selectivitymentioning

confidence: 99%

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Solid electrolyte based sensors for the measurement of CO and hydrocarbon gases

Fergus

2007

Sensors and Actuators B: Chemical

113

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Section: Selectivitysupporting

confidence: 78%

Section: Selectivitymentioning

confidence: 99%

Solid electrolyte based sensors for the measurement of CO and hydrocarbon gases

Fergus

2007

Sensors and Actuators B: Chemical

113

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“…5 large responses to CO, H 2 and unsaturated HCs. Such a behavior is typical for the mixed-potential-type YSZ-based sensors (using Au-SE and Pt-RE) performed in either tubular or planar configuration [18][19][20]. Fig.…”

Section: Planar-like Rod-type Sensor Using Mn 2 O 3 -Rementioning

confidence: 72%

Novel solid-state manganese oxide-based reference electrode for YSZ-based oxygen sensors

Miura

Jin

Wama

et al. 2011

Sensors and Actuators B: Chemical

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a b s t r a c tVarious Mn-based oxides have been screened to find a suitable all-solid-state gas-insensitive referenceelectrode (RE) for yttria-stabilized zirconia (YSZ)-based potentiometric oxygen sensor. The experimental observation of tubular YSZ-based sensors attached with each of the outer Mn-based oxide sensing electrodes (SEs) and the inner Pt-RE revealed that Mn 2 O 3 -SE was insensitive to all gases including oxygen at operating temperatures below 550 • C. Thus, the planar-like rod-type YSZ-based sensor using Pt-SE, Au-SE and Mn 2 O 3 -RE was then fabricated and its sensing performances were evaluated at 550 • C. As a result, the planar sensor using a couple of Pt-SE and Mn 2 O 3 -RE exhibited excellent responses to oxygen in the concentration range of 0.05-21 vol.% obeying Nernst equation and gave negligible responses to other co-existing gases. Close similarity of the results for tubular and planar sensors operated in a wide range of air/fuel (A/F) ratio indicated that the tubular YSZ-based sensor using the inner Pt-RE could be successfully miniaturized to the planar one using Mn 2 O 3 -RE without sacrificing its performance.

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“…However, the question is put forward by some authors [3,30], and is it always mixed potential? Especially in the case of semiconducting oxides as sensing electrodes, other phenomena have to be considered, such as the surface morphology, the catalytic activity, the adsorption-desorption behavior of the electrodes, etc.…”

Section: Discussionmentioning

confidence: 99%

Effect of palladium oxide electrode on potentiometric sensor response to carbon monoxide

Zhu

Zheng

Jian

2015

Ionics

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This study aims to explore the potential merits of palladium oxide sensing electrode. PdO is applied on a solidstate potentiometric sensor on an yttria-stabilized zirconia (YSZ) electrolyte as sensing electrode for the first time. The physical properties, morphology, chemical properties, and sensing performance of synthetic PdO electrode are characterized. An attractive phenomenon is observed that the thicknesses of PdO electrode have a little impact on the sensor response. The sensing mechanism is discussed regarding to the impedance analysis and sensing results of the sensor. We find that the change of electric potential of the sensor in CO environment is irrelevant to mobile oxygen in electrolyte, and the charged intermediate on the PdO is proposed to contribute the sensor signal. In addition, the response of sensor depends logarithmically on the concentrations of CO, and the slope is −33.4 mV/decade.

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Nonideal Electromotive Force of Zirconia Sensors for Unsaturated Hydrocarbon Gases

Cited by 41 publications

References 0 publications

Solid electrolyte based sensors for the measurement of CO and hydrocarbon gases

Solid electrolyte based sensors for the measurement of CO and hydrocarbon gases

Novel solid-state manganese oxide-based reference electrode for YSZ-based oxygen sensors

Effect of palladium oxide electrode on potentiometric sensor response to carbon monoxide

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