Evidence for an H2 promoting effect in the selective catalytic reduction of NOx by propene on Au/Al2O3

Abstract

This work provides the first experimental evidence of an H₂ effect in C₃H₆-SCR over an Au/Al₂O₃ catalyst. This effect could only be observed when the number of Au catalytic sites was decreased. The N₂ turnover rate estimated for the first time for the Au catalytic sites for H₂–C₃H₆-SCR was found to be similar to that estimated for Ag ones supported on Al₂O₃.