B2.2 Pulsed Polarization on Au|YSZ NOx-Sensors with and without Catalytic Layer

Event
SMSI 2021
2021-05-03 - 2021-05-06
digital
Band
SMSI 2021 - Sensors and Instrumentation
Chapter
B2 Gas Sensors II
Author(s)
N. Donker, D. Schönauer-Kamin, R. Moos - University of Bayreuth, Bayreuth (Germany), A. Ruchets, J. Zosel - Kurt-Schwabe-Institut für Mess- und Sensortechnik Meinsberg e.V., Waldheim (Germany), U. Guth - Dresden University of Technology, Dresden (Germany)
Pages
113 - 114
DOI
10.5162/SMSI2021/B2.2
ISBN
978-3-9819376-4-0
Price
free

Abstract

Sensors of the type Au|YSZ|Au were produced, and some of them were covered with an additional Pt containing catalyst layer. These sensors were operated in the pulsed polarization mode. Their sensitivity to NOx was investigated. The pure gold sensor showed almost no NO signal, but a clear signal towards NO2. The catalyst-coated sensor responded to both gases, NO and NO2. Therefore, we assume that NO2 is essential for the sensor effect, which could not have been explicitly shown in previous studies.

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