Remarkable oxygen promotion of the selective reduction of nitric oxide by hydrogen over Au/NaY and Au/ZSM-5 zeolite catalysts

Abstract

A significant enhancement of the selective reduction of nitrogen oxide by H 2 is produced in the presence of oxygen over Au/NaY and Au/ZSM-5 catalysts by forming NO 2 and N 2 O 4 intermediates, which are eventually reduced to N 2 .