NOx STORAGE MATERIALS FOR SENSOR APPLICATIONS

摘要

A NOx storage material comprises a support, a potassium salt impregnated on the support, the potassium impregnated on the support is promoted with a platinum group metal, and wherein the NOx storage material has an electrical property which changes based on the amount of NOx loading on the NOx storage material. An apparatus for direct NOx measurement includes a sensor coated with the NOx storage material. A method of determining NOx flux in a NOx containing gas comprises exposing the gas to the apparatus and converting a signal developed by the apparatus to a signal representative of the NOx flux.