Synthesis of mesoporous Fe-incorporated alumina particles with regular pores

Abstract

The incorporation of iron species content up to 20at.% in the framework of alumina containing silica has been successfully synthesized by using citric acid and an ultrasonic spray method under high acidic condition. In general, it is difficult to introduce the Fe ions into the mesopore-framework directly because of a fast dimerization rate of Fe ions. Moreover, the mesoporous alumina particle incorporating iron up to 20 at.% has not been reported yet. In this work, the pore structure of the prepared samples is hexagonal with regular pores and no agglomeration of iron oxide particles shows in the samples. This material can be a potential catalyst for selective reduction, hydrocarbon oxidation and redox reaction at high temperature. (C) 2011 Elsevier B.V. All rights reserved.