Fe-Beta zeolite for selective catalytic reduction of NOx with NH3: Influence of Fe content

Fe-Beta catalysts with different Fe content were prepared by ion exchange method through modulating the volume of Fe salt solution with a certain concentration. The catalyst with 6.3 wt% Fe content possessed the high amount of strong acidic sites, and high ability to NO adsorption and the high activity for NO oxidation, leading to the high NH3-SCR activity at low temperature.