X-ray absorption spectra
Structures of Plutonium(IV) and Uranium(VI) with N,N-Dialkyl Amides from Crystallography, X-ray Absorption Spectra and Theoretical Calculations
... On Figure 8, the calculated EXAFS spectra for Pu-DEPA complexes with structures a, b and c are compared to the experimental one recorded for Pu-DEHBA. Provided that no interatomic distances or Debye-Waller ...
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Confirmation of X-ray Absorption by Warm-hot Intergalactic Medium in the Sculptor Wall
... an absorption line from the warm-hot intergalactic medium (WHIM) using the Chandra and XMM X-ray grating spectra of the blazar H2356-309, the sight line of which intercepts the Sculptor Wall, ...
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X-Ray Absorption Spectroscopy and Anomalous Wide Angle X-Ray Scattering: Two Basic Tools in the Analysis of Heterogeneous Catalysts
... hard X-ray photons. Moreover, since X-ray absorption spectra can also be collected at the K edge of light elements, the adsorption process of molecules of major interest in ...
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Electronic structure of thallium filled skutterudites studied by x-ray absorption and Mossbauer spectroscopy
... -edge x-ray absorption and iron-57 and tin-119 Mo¨ssbauer spectral measurements have been carried out to probe the electronic structure of the three sites in the filled skutterudite Tl x Co 4 ...
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Unveiling Pseudocapacitive Charge Storage Behavior in FeWO 4 Electrode Material by Operando X‐Ray Absorption Spectroscopy
... conditions, X-ray absorption spectra were acquired at both Fe K- edge and W L 3 -edge to determine the valence of iron and tungsten, respectively, in the pristine material at the ...
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White-line evolution in shocked solid Ta evidenced by synchrotron x-ray absorption spectroscopy
... how x rays are absorbed by an atom at energies near and above the core-level bind- ing energies of that particular atom [ 37 ...]. X-ray absorption spectra are traditionally divided ...
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Full potential x-ray absorption calculations using the time dependent density functional theory
... of X-ray absorption in extended systems rely on the spherical muffin-tin (MT) ...experimental X-ray absorption spectra is significantly improved by the full potential ...
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Insights on Fission Products behaviour in Nuclear Severe Accident Conditions by X-ray Absorption Spectroscopy
... Zr spectra confirm the oxidations states Ba +2 and Zr +4 , as well as a Zr local environment similar to that of the perovskite and pyrochlore structures, which could confirm the BaZrO 3 chemical ...
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High-Resolution Near-Edge X-ray Absorption Fine Structure Study of Condensed Polyacenes
... At last, one feature of the spectra is not adequately explained by our theoretical approach. In the experiment, the intensity of the second band increases with the size of the molecule, but the intensities of ...
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High energy resolution five-crystal spectrometer for high quality fluorescence and absorption measurements on an X-ray Absorption Spectroscopy beamline
... alternative 42 . This experiment has a double interest. The first one is to probe a diluted element (Sr at 1400 ppm) in a crystalline UO 2 sample doped with 11 elements (Ba, Ce, La, Mo, Sr, Y, Zr, Rh, Pd, Ru, Nd) ...
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Magnetic spectral response and lattice properties in mixed-valence Sm1-x Yx S solid solutions studied with x-ray diffraction, x-ray absorption spectroscopy, and inelastic neutron scattering
... excitations for both Sm 2+ and Sm 2+ accessible with suf- ficient resolution (∆E = 13 meV at zero energy transfer, further improving in the neutron-energy-loss region). Single-crystal inelastic neutron scattering ...
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Effects of porosity on emergent synthetic spectra of massive stars in the X-ray domain
... mass absorption coe ...clump absorption in the optically thick limit is given by the geometric cross section lead to a simplified scaled e ffective ...
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A computational study on the X-ray absorption spectrum of proton-ordered crystalline ice IX
... be neglected and must be taken into account in the calculation of the ice cluster XAS. Apart from changes in the shape of the overall absorption spectra, the Madelung potential has a drastic effect on the ...
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Iron (III)-silica interactions in aqueous solution: Insights from X-ray absorption fine structure spectroscopy
... XAFS Spectra Acquisition and Data Reduction XAFS spectra (including the X-ray absorption near edge structure region or XANES, and the extended X-ray absorption fine ...
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Detection of a Transient X-ray Absorption Line Intrinsic to the Bl Lacertae Object H 2356-309
... ultraviolet spectra of stellar ob- jects, and is often attributed to the stellar wind ...the X-ray P Cygni line was first detected in the spectrum of Circinus X-1, a Galactic ...
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Unravelling lithiation mechanisms of iron trifluoride by operando X-ray absorption spectroscopy and MCR-ALS chemometric tools
... the positivity of the concentrations, the MCR-ALS enables the identification and quantification of the different species obtained by the algorithm to give the best fit possible with the experimental XAS spectrum at all ...
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Formation of Pt-Ru nanoparticles in ethylene glycol solution: an in situ X-ray absorption spectroscopy study
... atom. Spectra obtained from the region extending from the XANES region to as high as 2 keV above the edge are known as the extended X-ray absorption fine structure (EXAFS) spectra and ...
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Local versus global electronic properties of chalcopyrite alloys: X-ray absorption spectroscopy and ab initio calculations
... experimental absorption spectra from the core-hole created in the excitation process, such as many-body relaxation and core-hole lifetime broadening, 25 , 26 are beyond the scope of our DFT ...experimental ...
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Following the thermal activation of Au25(SR)18 clusters for catalysis by x-ray absorption spectroscopy
... purged with N 2 for 15 min while stirring. After purging with N 2 , 30 equiv of NaBH 4 in 3 mL of ice cold water was added, and immediately after the addition of NaBH 4 , UV−vis spectra were recorded. The rate ...
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In situ X-ray absorption study of a layered manganese-chromium oxide-based cathode material
... The findings of the EXAFS data analysis are also in agreement with the results of the XANES data. The Mn EXAFS data taken during first discharge and second charge shows that for all states of charge Mn ions are ...
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