Non-nernstian planar sensors based on YSZ with an Nb 2O 5 electrode: Discussion on sensing mechanism

Laure Chevallier; Elisabetta Di Bartolomeo; Maria Luisa Grilli; Marina Mainas; Briggs White; Eric D. Wachsman; Enrico Traversa

doi:10.1149/1.2215552

Non-nernstian planar sensors based on YSZ with an Nb 2O 5 electrode: Discussion on sensing mechanism

Laure Chevallier^*, Elisabetta Di Bartolomeo, Maria Luisa Grilli, Marina Mainas, Briggs White, Eric D. Wachsman, Enrico Traversa

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

Solid electrolyte based sensors have been widely studied for the detection of CO/HC and NO _x at high temperature. Nevertheless, the discussion about the sensing mechanism of non-nernstian electrochemical gas sensors, with a semiconducting sensing electrode, is still open. In this work, a study of the influence of the metallic electrode under the semiconducting metal oxide Nb ₂O ₅ on the sensor response was performed. Planar sensors based on tape-cast YSZ layers were fabricated. Two Pt or Au finger electrodes were deposited in a parallel arrangement on a single side of YSZ. One of these electrodes was covered with Nt ₂O ₅ thick film. In order to better understand the sensing mechanism, the electrical measurements were correlated with catalytic measurements performed on both sensing and reference electrodes. copyright The Electrochemical Society.

Original language	English (US)
Title of host publication	Solid State Ionic Devices IV
Pages	163-171
Number of pages	9
Volume	1
Edition	7
DOIs	https://doi.org/10.1149/1.2215552
State	Published - 2005
Externally published	Yes
Event	4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society - Los Angeles, CA, United States Duration: Oct 16 2005 → Oct 21 2005

Other

Other	4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society
Country/Territory	United States
City	Los Angeles, CA
Period	10/16/05 → 10/21/05

ASJC Scopus subject areas

Engineering(all)

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10.1149/1.2215552

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@inproceedings{463ec20bf1194985b0e94436dd59a917,

title = "Non-nernstian planar sensors based on YSZ with an Nb 2O 5 electrode: Discussion on sensing mechanism",

abstract = "Solid electrolyte based sensors have been widely studied for the detection of CO/HC and NO x at high temperature. Nevertheless, the discussion about the sensing mechanism of non-nernstian electrochemical gas sensors, with a semiconducting sensing electrode, is still open. In this work, a study of the influence of the metallic electrode under the semiconducting metal oxide Nb 2O 5 on the sensor response was performed. Planar sensors based on tape-cast YSZ layers were fabricated. Two Pt or Au finger electrodes were deposited in a parallel arrangement on a single side of YSZ. One of these electrodes was covered with Nt 2O 5 thick film. In order to better understand the sensing mechanism, the electrical measurements were correlated with catalytic measurements performed on both sensing and reference electrodes. copyright The Electrochemical Society.",

author = "Laure Chevallier and {Di Bartolomeo}, Elisabetta and Grilli, {Maria Luisa} and Marina Mainas and Briggs White and Wachsman, {Eric D.} and Enrico Traversa",

year = "2005",

doi = "10.1149/1.2215552",

language = "English (US)",

isbn = "1566774942",

volume = "1",

pages = "163--171",

booktitle = "Solid State Ionic Devices IV",

edition = "7",

note = "4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society ; Conference date: 16-10-2005 Through 21-10-2005",

}

Chevallier, L, Di Bartolomeo, E, Grilli, ML, Mainas, M, White, B, Wachsman, ED & Traversa, E 2005, Non-nernstian planar sensors based on YSZ with an Nb 2O 5 electrode: Discussion on sensing mechanism. in Solid State Ionic Devices IV. 7 edn, vol. 1, pp. 163-171, 4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society, Los Angeles, CA, United States, 10/16/05. https://doi.org/10.1149/1.2215552

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T1 - Non-nernstian planar sensors based on YSZ with an Nb 2O 5 electrode

T2 - 4th International Symposium on Solid-State Ionic Devices - 208th Meeting of the Electrochemical Society

AU - Chevallier, Laure

AU - Di Bartolomeo, Elisabetta

AU - Grilli, Maria Luisa

AU - Mainas, Marina

AU - White, Briggs

AU - Wachsman, Eric D.

AU - Traversa, Enrico

PY - 2005

Y1 - 2005

N2 - Solid electrolyte based sensors have been widely studied for the detection of CO/HC and NO x at high temperature. Nevertheless, the discussion about the sensing mechanism of non-nernstian electrochemical gas sensors, with a semiconducting sensing electrode, is still open. In this work, a study of the influence of the metallic electrode under the semiconducting metal oxide Nb 2O 5 on the sensor response was performed. Planar sensors based on tape-cast YSZ layers were fabricated. Two Pt or Au finger electrodes were deposited in a parallel arrangement on a single side of YSZ. One of these electrodes was covered with Nt 2O 5 thick film. In order to better understand the sensing mechanism, the electrical measurements were correlated with catalytic measurements performed on both sensing and reference electrodes. copyright The Electrochemical Society.

AB - Solid electrolyte based sensors have been widely studied for the detection of CO/HC and NO x at high temperature. Nevertheless, the discussion about the sensing mechanism of non-nernstian electrochemical gas sensors, with a semiconducting sensing electrode, is still open. In this work, a study of the influence of the metallic electrode under the semiconducting metal oxide Nb 2O 5 on the sensor response was performed. Planar sensors based on tape-cast YSZ layers were fabricated. Two Pt or Au finger electrodes were deposited in a parallel arrangement on a single side of YSZ. One of these electrodes was covered with Nt 2O 5 thick film. In order to better understand the sensing mechanism, the electrical measurements were correlated with catalytic measurements performed on both sensing and reference electrodes. copyright The Electrochemical Society.

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DO - 10.1149/1.2215552

M3 - Conference contribution

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SN - 1566774942

SN - 9781566774949

VL - 1

SP - 163

EP - 171

BT - Solid State Ionic Devices IV

Y2 - 16 October 2005 through 21 October 2005

ER -

Non-nernstian planar sensors based on YSZ with an Nb 2O 5 electrode: Discussion on sensing mechanism

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