XPS and FTIR characterization of manganese ions deposited on alumina

Abstract

By application of XPS and FTIR spectroscopy of adsorbed CO the effect of preparation conditions on the state and localization of manganese ions deposited on h-Al2O3 is studied. Both Mn21 and Mn31 ions are observed on the impregnated sample. The sample obtained by ion exchange contains only Mn31 ions. The adsorbed CO species are identified. q 1999 Elsevier Science B.V. All rights reserved.