Open AccessJournal Article
X-ray absorption : principles, applications, techniques of EXAFS, SEXAFS, and XANES
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TLDR
Theory of X-ray Absorption Spectroscopy (EXAFS) is described in this paper, where the authors present an experimental setup of EXAFS with Synchrotron Radiation.Abstract:
Theory of EXAFS. Theory of XANES. INSTRUMENTAL AND DATA ANALYSIS. Design of an EXAFS Experiment. EXAFS with Synchrotron Radiation. Laboratory EXAFS Facilities. Data Analysis. APPLICATIONS. Biochemical Application of X-ray Absorption Spectroscopy. Catalysis. Amorphous and Liquid Systems. SEXAFS. XANES Spectroscopy.read more
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Journal ArticleDOI
Variable Rowland radius laboratory vacuum surface-sensitive x-ray absorption fine structure spectrometer
TL;DR: High near surface sensitivity is demonstrated by the EXAFS spectra of Cu K and Hf LIII edges measured from 3 nm Cu and H f oxide films.
Journal ArticleDOI
Hydrolysis of uranium and thorium in surface-modified bentonite under hydrothermal conditions
TL;DR: In this article, the speciation of (UO 2 ) 2+ -and Th 4+ -exchanged bentonite clay samples was probed by X-ray absorption spectroscopy (XAS).
Book ChapterDOI
Chapter 12.3 X-ray Absorption Spectroscopy
TL;DR: In this article, a review of synchrotron-based studies of clays and clay minerals is presented, focusing on the application of XAS to elucidating the structure and reactivity of 2:1 phyllosilicates, with particular emphasis on smectites.
Journal ArticleDOI
In situ EXAFS and XANES measurements of the change in Ti coordination during the calcination of a (TiO2)0.18(SiO2)0.82 aerogel
David M. Pickup,Gavin Mountjoy,Mark A. Holland,Graham Wallidge,Robert J. Newport,Mark E. Smith +5 more
TL;DR: In this paper, the authors show that the coordination of Ti in this material changes from a mixture of four and sixfold to predominantly fourfold as the temperature is increased from ambient to 300 c. The decrease in static disorder, as the environment of Ti converts to predominantly a single site, is such that the overall Debye-Waller factor for the Ti-O shell decreases markedly even as temperature increases to 700 c.
Journal ArticleDOI
Structural assessment of the electrochemical performance of LixCoO2 membrane electrodes by X-ray diffraction and absorption refinements
TL;DR: In this paper, Rietveld refinements of X-ray diffraction data were performed, with Li at 3a, Co at 3b and O at 6c in the space group R-3m as starting model, showing a continuous variation of the AC unit cell and structural parameters such as the lithium site occupancy and the Li-O and Co-O interatomic distances.
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