Studies on the behavior of mixed-metal oxides: Structural, electronic, and chemical properties of beta-FeMoO4

Article Abstract:

The structural and electronic properties of iron molybdate (FeMoO4) are studied using synchrotron-based time-resolved X-ray diffraction (TR-XRD), X-ray absorption near-edge spectroscopy (XANES), and first-principles density functional (DFT-GGA) calculations. The valence electronic structure of beta-FeMoO4 is characterized by an intense peak with Fe 3d character near the top of the valence band.

Molybdenum Compounds, Usage, Iron, Iron (Metal), Density functionals, Density functional theory, Ammonium molybdate

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Interaction of SO2 with MgO(100) and Cu/MgO(100): decomposition reactions and the formation of SO3 and SO4

Article Abstract:

Synchrotron-based high-resolution photoemission and first-principles density functional calculations (DFT-GGA) are used to study the interaction of SO2 with clean and modified MgO(100) surfaces. The reaction of the molecule with pure and hydroxylated powders of MgO is investigated using X-ray absorption near-edge spectroscopy (XANES).

Sulfur Compounds, Decomposition (Chemistry), Sulphur compounds

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MgO supported Rh6 and Ir6: Structural characterization during the catalysis of ethene hydrogenation

Article Abstract:

A comparison of MgO-supported rh(sub 6) and MgO-supported Ir(sub 6) as catalysts for ethene hydrogenation is presented. The findings suggest that the influence of metal composition on catalytic activity extends from quasi-molecular metal clusters to metallic particles.

Cyclic Crude and Intermediate Manufacturing, Ethylene, Hydrogenation

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