Study of YSZ-based electrochemical sensors with WO3 electrodes in NO2 and CO environments

Atanu Dutta; Narin Kaabbuathong; Maria Luisa Grilli; Elisabetta Di Bartolomeo; Enrico Traversa

doi:10.1149/1.1533044

Study of YSZ-based electrochemical sensors with WO₃ electrodes in NO₂ and CO environments

Atanu Dutta^*, Narin Kaabbuathong, Maria Luisa Grilli, Elisabetta Di Bartolomeo, Enrico Traversa

^*Corresponding author for this work

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

77 Scopus citations

Abstract

Electrochemical sensors based on yttria-stabilized zirconia (YSZ) with WO₃ as a sensing electrode were fabricated using either Pt or Au electrodes. The sensors were studied in the temperature range 500-700°C in the presence of different concentrations (300-1000 ppm) of NO₂ and CO in air. The response to NO₂ was very stable with fast response time (within 20 s). The best sensitivity was observed at 600 and 650°C using Pt and Au electrodes, respectively. At all temperatures investigated a cross sensitivity to CO gas was also noticed. The response to CO was decreased using Au electrodes. The role played by WO₃ as a sensing electrode was investigated.

Original language	English (US)
Pages (from-to)	H33-H37
Journal	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume	150
Issue number	2
DOIs	https://doi.org/10.1149/1.1533044
State	Published - Feb 2003
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1149/1.1533044

Cite this

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abstract = "Electrochemical sensors based on yttria-stabilized zirconia (YSZ) with WO3 as a sensing electrode were fabricated using either Pt or Au electrodes. The sensors were studied in the temperature range 500-700°C in the presence of different concentrations (300-1000 ppm) of NO2 and CO in air. The response to NO2 was very stable with fast response time (within 20 s). The best sensitivity was observed at 600 and 650°C using Pt and Au electrodes, respectively. At all temperatures investigated a cross sensitivity to CO gas was also noticed. The response to CO was decreased using Au electrodes. The role played by WO3 as a sensing electrode was investigated.",

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AU - Kaabbuathong, Narin

AU - Grilli, Maria Luisa

AU - Di Bartolomeo, Elisabetta

AU - Traversa, Enrico

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AB - Electrochemical sensors based on yttria-stabilized zirconia (YSZ) with WO3 as a sensing electrode were fabricated using either Pt or Au electrodes. The sensors were studied in the temperature range 500-700°C in the presence of different concentrations (300-1000 ppm) of NO2 and CO in air. The response to NO2 was very stable with fast response time (within 20 s). The best sensitivity was observed at 600 and 650°C using Pt and Au electrodes, respectively. At all temperatures investigated a cross sensitivity to CO gas was also noticed. The response to CO was decreased using Au electrodes. The role played by WO3 as a sensing electrode was investigated.

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