Structural and catalytic properties of Mn oxo-clusters supported on mesoporous MCM-41

Journal article

A novel carbon monoxide oxidation catalyst based on highly dispersed Mn oxo-species grafted onto the internal wall of an MCM-41 material is described. This material is prepared via the chemical reaction of Mn2(CO)10 with Si-OH groups on the surface of mesoporous silica, followed by subsequent heat treatment in air. EXAFS studies indicate that this material contains no carbonyl groups but with new Mn-O interactions (three Mn-O at 1.900 angstrom and one MnO at 1.747 angstrom) and a Mn-Si interaction (via Mn-O-Si) at 3.280 angstrom. The best fitted model suggests that the anchored Mn-oxo species has a structure resembling Mn2O7.

Authors: Gleeson, D; Burch, R; Cruise, N; Tsang, S

• Publisher: Elsevier
• Journal: Nanostructured Materials
• Volume: 12
• Issue: 5
• Pages: 1007-1010
• Publication date: 1999-01-01
• DOI: 10.1016/S0965-9773(99)00288-3
• ISSN: 0965-9773
• Language: English