An yttria-doped ceria-based oxygen sensor with solid-state reference

Bahman Elyassi; Nagiseh Rajabbeigi; Abbas Khodadadi; Shamsoddin S. Mohajerzadeh; Muhammad Sahimi

doi:10.1016/j.snb.2004.04.117

An yttria-doped ceria-based oxygen sensor with solid-state reference

Bahman Elyassi, Nagiseh Rajabbeigi, Abbas Khodadadi, Shamsoddin S. Mohajerzadeh, Muhammad Sahimi

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

A self-contained, miniaturized, electrochemical-type solid-reference oxygen sensor is described which uses yttria-doped ceria (YDC) as an oxygen ion conducting solid electrolyte. Unlike conventional oxygen sensors, in which one side of the sensor needs to be directly exposed to the air reference, the oxygen sensor presented in this paper exploits a solid solution of 25mol% zirconia in ceria as the reference. Designing a combination structure, the sensing capability of this sensor is compared with a YSZ electrolyte oxygen sensor under the same conditions. This novel oxygen sensor exhibits an anomalous behavior in transition from rich-to-lean regimes where the polarity of the created voltage changes from a positive value of +500mV to a negative value of -150mV at λ = 1.01.

Original language	English (US)
Pages (from-to)	178-183
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	103
Issue number	1-2
DOIs	https://doi.org/10.1016/j.snb.2004.04.117
State	Published - Sep 29 2004

Bibliographical note

Funding Information:
The work of the first four authors was supported by the Research Council of the University of Tehran. The authors would like to thank Dr. M. Sereshti from Department of Chemistry of the University of Tehran for his help in promoting this work, and to Mr. S. Kiani for assistance in performing the SEM analysis.

Keywords

Ceria-zirconia
Oxygen sensor
Solid-state reference
YDC
YSZ

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10.1016/j.snb.2004.04.117

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abstract = "A self-contained, miniaturized, electrochemical-type solid-reference oxygen sensor is described which uses yttria-doped ceria (YDC) as an oxygen ion conducting solid electrolyte. Unlike conventional oxygen sensors, in which one side of the sensor needs to be directly exposed to the air reference, the oxygen sensor presented in this paper exploits a solid solution of 25mol% zirconia in ceria as the reference. Designing a combination structure, the sensing capability of this sensor is compared with a YSZ electrolyte oxygen sensor under the same conditions. This novel oxygen sensor exhibits an anomalous behavior in transition from rich-to-lean regimes where the polarity of the created voltage changes from a positive value of +500mV to a negative value of -150mV at λ = 1.01.",

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note = "Funding Information: The work of the first four authors was supported by the Research Council of the University of Tehran. The authors would like to thank Dr. M. Sereshti from Department of Chemistry of the University of Tehran for his help in promoting this work, and to Mr. S. Kiani for assistance in performing the SEM analysis. ",

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AU - Elyassi, Bahman

AU - Rajabbeigi, Nagiseh

AU - Khodadadi, Abbas

AU - Mohajerzadeh, Shamsoddin S.

AU - Sahimi, Muhammad

N1 - Funding Information: The work of the first four authors was supported by the Research Council of the University of Tehran. The authors would like to thank Dr. M. Sereshti from Department of Chemistry of the University of Tehran for his help in promoting this work, and to Mr. S. Kiani for assistance in performing the SEM analysis.

PY - 2004/9/29

Y1 - 2004/9/29

N2 - A self-contained, miniaturized, electrochemical-type solid-reference oxygen sensor is described which uses yttria-doped ceria (YDC) as an oxygen ion conducting solid electrolyte. Unlike conventional oxygen sensors, in which one side of the sensor needs to be directly exposed to the air reference, the oxygen sensor presented in this paper exploits a solid solution of 25mol% zirconia in ceria as the reference. Designing a combination structure, the sensing capability of this sensor is compared with a YSZ electrolyte oxygen sensor under the same conditions. This novel oxygen sensor exhibits an anomalous behavior in transition from rich-to-lean regimes where the polarity of the created voltage changes from a positive value of +500mV to a negative value of -150mV at λ = 1.01.

AB - A self-contained, miniaturized, electrochemical-type solid-reference oxygen sensor is described which uses yttria-doped ceria (YDC) as an oxygen ion conducting solid electrolyte. Unlike conventional oxygen sensors, in which one side of the sensor needs to be directly exposed to the air reference, the oxygen sensor presented in this paper exploits a solid solution of 25mol% zirconia in ceria as the reference. Designing a combination structure, the sensing capability of this sensor is compared with a YSZ electrolyte oxygen sensor under the same conditions. This novel oxygen sensor exhibits an anomalous behavior in transition from rich-to-lean regimes where the polarity of the created voltage changes from a positive value of +500mV to a negative value of -150mV at λ = 1.01.

KW - Ceria-zirconia

KW - Oxygen sensor

KW - Solid-state reference

KW - YDC

KW - YSZ

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An yttria-doped ceria-based oxygen sensor with solid-state reference

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Keywords

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