Direct evidence for the incorporation of univalent indium into high-silica zeolite, H-ZSM-5, by thermal auto-reductive solid-state ion exchange

Abstract

In mechanical mixtures of H-ZSM-5 and In₂O₃ thermal auto-reductive solid-state ion exchange (AR-SSIE) was found to proceed upon treatment in high vacuum at 840 K resulting in the incorporation of In⁺ ions into, and in an increase of the thermal stability of, the zeolitic component.