Synthesis and Characterization of Gamma-alumina Supported Manganese Oxides Prepared by Grafting and Impregnation for Applications in Heterogeneous Catalysis

Synthesis and Characterization of Gamma-alumina Supported Manganese Oxides Prepared by Grafting and Impregnation for Applications in Heterogeneous Catalysis

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The presence of supported manganese oxide limited thermally induced loss of support surface area, with the ethoxide grafted material limiting it the most. This is attributed to the impregnation and manganese methoxide grafting techniques producing multi-layers, micro-crystallites or oligomeric surface manganese oxides at the loadings investigated in this study, whereas the ethoxide grafting technique leads to a highly dispersed sub mono-layer of manganese oxide surface active sites at all achieved loadings.LIST OF FIGURES Figure 1.1 Enthalpy change diagram illustrating the differences in activation energy (Ea) for ... (Adapted from reference 11) 31 1 .2 Stoichiometric reactions illustrating the three main classes of catalytic reactions which occur simultaneously in the catalytic converter of ... structures 34 1 .8 Schematic diagram illustrating thermal gravimetric analysis for distinguishing supported metal oxideanbsp;...


Title:Synthesis and Characterization of Gamma-alumina Supported Manganese Oxides Prepared by Grafting and Impregnation for Applications in Heterogeneous Catalysis
Author: Nicholas Jay Schoenfeldt
Publisher:ProQuest - 2008
ISBN-13:

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