Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Daniela Schönauer-Kamin"'
Autor:
Stefanie Walter, Johanna Baumgärtner, Gunter Hagen, Daniela Schönauer-Kamin, Jaroslaw Kita, Ralf Moos
Publikováno v:
Sensors, Vol 24, Iss 9, p 2951 (2024)
Nitrogen oxides (NOx), primarily generated from combustion processes, pose significant health and environmental risks. To improve the coordination of measures against excessive NOx emissions, it is necessary to effectively monitor ambient NOx concent
Externí odkaz:
https://doaj.org/article/aa4636b1c00b4d1c8e308cc4c7bc1979
Publikováno v:
Sensors, Vol 24, Iss 3, p 811 (2024)
Powder aerosol deposition (often abbreviated as PAD, PADM, or ADM) is a coating method used to obtain dense ceramic films at room temperature. The suitability of this method to obtain ammonia mixed-potential sensors based on an yttria-stabilized zirc
Externí odkaz:
https://doaj.org/article/6e799b3359f8476aa808c8e7a8846b9f
Publikováno v:
Sensors, Vol 19, Iss 19, p 4104 (2019)
A novel sensor operation concept for detecting ppb-level NO2 concentrations at room temperature is introduced. Today’s research efforts are directed to make the sensors as fast as possible (low response and recovery times). Nevertheless, hourly mea
Externí odkaz:
https://doaj.org/article/b5bc0c4c89a54d379d50975b69d7350c
Publikováno v:
Sensors, Vol 13, Iss 12, Pp 16051-16064 (2013)
The pulsed polarization measurement technique using conventional thimble type lambda probes is suitable for low ppm NOx detection in exhaust gas applications. To evaluate the underlying sensor mechanism, the unknown influence of the reference atmosph
Externí odkaz:
https://doaj.org/article/ae5087cd221040699721629b0bb4d17a
Publikováno v:
Sensors, Vol 13, Iss 4, Pp 4760-4780 (2013)
Half-cell potentials of the electrochemical cell Au, VWT | YSZ | Au are analyzed in dependence on oxygen and ammonia concentration at 550 °C. One of the gold electrodes is covered with a porous SCR catalyst, vanadia-tungstenia-titania (VWT). The cel
Externí odkaz:
https://doaj.org/article/c6330b554c304ac49a97eb9e89c71ccb
Publikováno v:
Proceedings, Vol 1, Iss 4, p 455 (2017)
The sensor signal of tin disulfide (SnS2), a two-dimensional (2D) group-IV dichalcogenide, deposited as a film on a conductometric transducer is investigated at 130 °C. The focus is on the detection of the total NOx concentration. Therefore, the sen
Externí odkaz:
https://doaj.org/article/44bc0d49ea82455cbb38b00a21687f00
Publikováno v:
Sensors, Vol 17, Iss 8, p 1715 (2017)
The pulsed polarization technique on solid electrolytes is based on alternating potential pulses interrupted by self-discharge pauses. Since even small concentrations of nitrogen oxides (NOx) in the ppm range significantly change the polarization and
Externí odkaz:
https://doaj.org/article/29431934f09245339c3688eac7b012e9
Autor:
Jens Zosel, Daniela Schönauer-Kamin, Ulrich Guth, Nils Donker, Michael Mertig, Anastasiya Ruchets, Ralf Moos
Publikováno v:
Journal of Sensors and Sensor Systems. 9:355-362
Solid electrolyte gas sensors (SESs) based on yttria-stabilized zirconia (YSZ) are suitable to detect traces of redox components in inert gases. Usually, their signals are generated as a voltage between two electrodes at open circuit potential or as
Publikováno v:
Sensors and Actuators B: Chemical. 290:28-33
A Pt-YSZ sensor was operated in the pulsed polarization mode. In contrast to previous studies, it was polarized with a constant charge. The polarization currents were varied. After polarization, it was self-discharged. The associated voltages during
Autor:
Nils Donker, Ulrich Guth, Daniela Schönauer-Kamin, Jens Zosel, Michael Mertig, Anastasiya Ruchets, Ralf Moos
Publikováno v:
Sensors and Actuators B: Chemical. 290:53-58
Solid electrolyte sensors (SES) based on yttria-stabilized zirconia (YSZ) can exhibit improved selectivity to redox active gases when they are operated with dynamic electrochemical methods like cyclic voltammetry (CV) or impedance spectroscopy (IS).