Novel and more facile synthesis of highly dispersed iron in small-pore zeolites by ion exchange for catalytic applications

Abstract

Iron exchanged zeolite catalysts have been synthesized by an aqueous ion-exchange using iron powder and acetic acid under a protective atmosphere. This simplified strategy for producing Fe(II) species in situ was found to lead to highly dispersed iron even within the zeolite framework of small-pore zeolites, which is attractive for various catalytic applications. The obtained samples were used for the selective catalytic reduction of NO_x with NH₃.