Abstract: A sensor for detecting conductive particles in a gas flow, comprising a substrate having two front sides, wherein a gas flow direction is from a first front side to a second front side, wherein a resistive electrode structure comprising at least two electrodes is formed on the substrate, the at least two electrodes are electrically separated, wherein in relation to the gas flow direction, a first electrode is arranged in a first section of the sensor such that the first electrode acts as a suction electrode, wherein a sensor detection region is formed in a second section of the sensor, whereby the sensor detection region is formed by portions of the first electrode and a second electrode, wherein the second electrode is formed at least partially in a third section of the sensor.

Abstract: The present invention relates to the use of a particular method for the targeted desulfurization of particular nitric oxide storage catalysts (NOx storage catalysts). In particular, this invention is directed to the use of an adapted method on specifically composed storage catalysts.

Abstract: The present invention relates to a method for exhaust gas after-treatment for essentially lean-burn internal combustion engines and also a corresponding advantageous exhaust gas after-treatment system. In particular, the present invention relates to reducing the proportion of the greenhouse gas N20 in the total exhaust gas from a corresponding internal combustion system using at least one NOx storage catalyst as exhaust gas purification element. The objective of the invention is to operate the N20 depletion catalyst located downstream of the NOx storage catalyst under lambda=<1 conditions when the N20 formed by the NOx storage catalyst reaches the N20 depletion catalyst.

Abstract: The present invention relates to a method for exhaust gas after-treatment for essentially lean-burn internal combustion engines and also a corresponding advantageous exhaust gas after-treatment system. In particular, the present invention relates to reducing the proportion of the greenhouse gas N20 in the total exhaust gas from a corresponding internal combustion system using at least one NOx storage catalyst as exhaust gas purification element. The objective of the invention is to operate the N20 depletion catalyst located downstream of the NOx storage catalyst under lambda=<1 conditions when the N20 formed by the NOx storage catalyst reaches the N20 depletion catalyst.