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Showing 1 to 9 of 9 for “"X-ray Absorption Fine Structure Spectroscopy"”.
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Structural Characterization and Phase Behavior in Supported Metallic Nanoparticles
… has been followed by using in-situ extended X-ray absorption fine structure spectroscopy, temperature programmed desorption, and scanning-transmission electron microscopy. The data reveal that during activation in hydrogen the stabilizing CO shell is lost, and the metal centers assume an …
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Uncovering molecular orientation and morphology at biotic/abiotic interface for peptide-based graphene sensors
… organic compounds (VOCs). Using near-edge X-ray absorption fine structure spectroscopy (NEXAFS) as the primary investigation tool, atomic-level information was obtained about the orientation of the peptide backbones in relation to the graphene surface upon the VOC binding. At the same time, …
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Oxyanion Adsorption by Iron and Ruthenium Oxides: A Macroscopic, Spectroscopic, and Kinetic Investigation
… complex with ruthenium oxide phases. Extended x-ray absorption fine structure spectroscopy and Pressure-jump relaxation studies indicates arsenate is specifically adsorbed the ruthenium oxide Chromate adsorption on ruthenium oxides was investigated as a function of pH and chromate solution …
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A structural study of M-DNA
… The complex is thought to have a double helical structure that is similar to B-DNA. The presence of the divalent metal ions and a more compact structure may contribute to M-DNA’s remarkable ability to behave as a molecular wire. Because M-DNA is so similar to B-DNA, it adheres to the same rules …
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Surface complexation modeling of Pb(II), Cd(II) and Se(IV) onto iron hydroxides in single and bisolute systems
… was supported by evidence from extended x-ray absorption fine structure spectroscopy. The fixed surface site density values based on tritium exchange experiments were used (Ns = 10.2 and 16.4 sites /nm2 for ferrihydrite and goethite, respectively). Ferrihydrite was modeled using one surface …
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EXPLORING THE ROLE OF METAL VARIABILITY IN MOFS USING SYNCHROTRON RADIATION TECHNIQUES
… explores the intricate relationship between MOF structure, metal composition, and functional properties, with a particular focus on multi-metal systems and their tunability. In detail, a set of coupled techniques, leveraging the capabilities of synchrotron-based diffraction and spectroscopic …
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Developments of time-resolved XAFS spectroscopy techniques - applications in homogeneous catalysis
… on the reaction mechanisms occurring. X-ray Absorption Fine Structure spectroscopy is a very powerful technique to obtain detailed electronic and structural information about the homogeneous catalysts in their chemical active environment, in situ and time-resolved, and derive structure ? …
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Structure and Ozone Decomposition Reactivity of Supported Manganese Oxide Catalysts
… of support on ozone decomposition kinetics. X-ray diffraction (XRD), in-situ laser Raman spectroscopy, temperature programmed oxygen desorption, surface area measurements, extended and near edge x-ray absorption fine structure (EXAFS and NEXAFS) showed that the manganese oxide was highly …
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From Source to Surveillance: An Assessment of Liquid Elemental Mercury Mobilization in Soil, Downstream Reactivity, and Biomarkers of Exposure
… used including scanning electron microscopy, X-ray absorption fine structure spectroscopy, and transmission electron spectroscopy. Altogether the data demonstrated the predominance of nanoparticulate HgS with crystal lattice defects in the streambank soils of this industrially impacted stream. …