at Google ScholarTitle data
Moos, Ralf ; Beulertz, Gregor ; Reiß, Sebastian ; Hagen, Gunter ; Fischerauer, Gerhard ; Votsmeier, Martin ; Gieshoff, Jürgen:
Status of the microwave-based automotive catalyst state diagnosis.
2012
Event: CAPOC9 - 9th International Congress on Catalysis and Automotive Pollution Control
, 29. - 31.08.2012
, Brussels, Belgium.
(Conference item: Conference
,
Speech
)
Project information
| Project title: |
Project's official title Project's id No information MO 1060/6-2, MO 1060/13-1, FI 956/3-2, FI 956/5-1 |
|---|---|
| Project financing: |
Deutsche Forschungsgemeinschaft |
Abstract in another language
The oxygen loading degree in TWCs, the amount of stored ammonia in SCR catalysts, the NOx loading degree in LNTs, or the soot loading of DPFs play a key role in automotive exhaust gas aftertreatment. Today’s methods determine the catalyst state indirectly. They utilize gas sensors installed up- or downstream of the catalysts and the catalyst state is inferred from the sensor signals. This overview reports on the status of an alternative approach based on the interaction of electromagnetic microwaves with the catalyst material. Since the catalyst state is strongly correlated with the electrical properties of the catalyst material itself, this concept shows a great potential.