Technical Details
The NOx adsorber is based on a catalytic converter support that has been coated with a special washcoat containing zeolites.
Alkali/alkaline oxide (carbonate) can also be used as a NOx absorber.
Their effective storage changes with temperature. They start to store NOx between 150 and 200C and at 500C the storage diminishes rapidly.
Read more about this topic: NOx Adsorber
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