Results 41 to 50 of about 28,693 (158)

OTHER EXAFS-LIKE PHENOMENA

, 1986
Divers phénomènes reliés à EXAFS sont décrits et comparés à partir de considérations d'ordre pratique et théorique. La plupart de ces phénomènes sont semblables sans toutefois être identiques à EXAFS.
E.A. STERN
core   +1 more source

The state of palladium and copper on the surface of freshly prepared low temperature carbon monoxide oxidadation catalyst PdCl₂-CuCl_2/γ-Al₂O₃

Тонкие химические технологии, 2010
The EXAFS/XANES, XRD, SEM methods were used for examination of freshly prepared low temperature carbon monoxide oxidation in air catalyst PdCl2-CuCl2/γ-Al2O3 active components states.
D. N. Titov, L. G. Bruk, I. V. Oshanina, O. N. Temkin, G. M. Kuz’micheva, Ya. V. Zubavichus, A. A. Veligzhanin, N. V. Sadovskaya   +7 more
doaj  

Effectiveness of ab initio molecular dynamics in simulating EXAFS spectra from layered systems

Journal of Synchrotron Radiation
The simulation of EXAFS spectra of thin films via ab initio methods is discussed. The procedure for producing the spectra is presented as well as an application to a two-dimensional material (WSe2) where the effectiveness of this method in reproducing ...
F. d'Acapito, M. A. Rehman
doaj   +1 more source

EXAFS of carbon monoxide oxidation on supported Pt fuel cell electrocatalysts

, 2000
The potential dependence of the extended X-ray absorption fine structure (EXAFS) obtained at the Pt LIII absorption edge for a carbon supported Pt electrocatalyst exposed to carbon monoxide is presented.
Mathew RJ, Maniguet S, Russell AE, Maniguet, S., Russell, A.E., Mathew, R.J.   +5 more
core   +1 more source

Improving sensitivity of XANES structural fit to the bridged metal–metal coordination

Journal of Synchrotron Radiation
Hard X-ray absorption spectroscopy is a valuable in situ probe for non-destructive diagnostics of metal sites. The low-energy interval of a spectrum (XANES) contains information about the metal oxidation state, ligand type, symmetry and distances in the ...
S. V. Abrosimov, B. O. Protsenko, A. S. Mannaa, V. G. Vlasenko, S. A. Guda, I. A. Pankin, A. S. Burlov, Y. V. Koshchienko, A. A. Guda, A. V. Soldatov   +9 more
doaj   +1 more source

Mechanisms of Copper and Mercury Adsorption on Bentonite Clays from EXAFS Spectroscopy

Chemical Engineering Transactions, 2014
Copper(II) and Mercury(II) cations are classified as important heavy metal pollutants in industrial wastewaters. In this study, Extended X-Ray Absorption Fine Structure (EXAFS) spectroscopy was used to provide information about the coordination ...
M.G.A. Vieira, A.F. de Almeida Neto, M.G.C. da Silva   +2 more
doaj   +1 more source

Hard X-rays magnetic EXAFS

, 1995
The results of a systematic study of Magnetic EXAFS at K edges of transition metals (TM) and L edges of rare earth (RE) compounds are presented. At the K edges of TM the magnetic EXAFS is in phase with the normal EXAFS in all studied cases and its ...
Giorgetti, C., Baudelet, F., Brouder, C., Fontaine, A., Pizzini, S., Dartyge, E., López, María Francisca, Kappler, J. P., Krill, G.   +8 more
core   +1 more source

Local structure and thermodynamics of II-VI and III-V semiconductors by EXAFS

, 1986
L'ordre à courte distance des solutions solides II-VI a été étudié par EXAFS. Les énergies de distorsion des cinq tétraèdres formant le réseau de ces solutions ont été évaluées par un simple modèle VFF (Valence Force Field).
Motta, N, P. LETARDI, BALZAROTTI, ADALBERTO, Letardi, P, N. MOTTA, A. BALZAROTTI, Letardi, P., Balzarotti, A   +7 more
core   +1 more source

EXAFS investigation of UF4 [PDF]

, 2015
A comparative structural study of UF4 and UO2, using extended x-ray absorption fine structure (EXAFS) and x-ray absorption near edge structure (XANES) techniques was conducted as part of the studies of 5f covalency in uranium compounds.
J. G. Tobin, Tobin, JG, Booth, CH, Siekhaus, W, W. Siekhaus, Shuh, DK, C. H. Booth, D. K. Shuh   +7 more
core   +1 more source

Gepta-EX: a multi-channel germanium detector for X-ray absorption fine structure

Journal of Synchrotron Radiation
Fluorescence-mode X-ray absorption spectroscopy (XAS) at high photon energies requires detectors with high stopping power and excellent energy resolution to measure weak element-specific signals.
Abdul K. Rumaiz, Francesca Capocasa, Anthony J. Kuczewski, Giovanni Pinaroli, Thomas Krings, Bruce Ravel, D. Peter Siddons   +6 more
doaj   +1 more source