Results 21 to 30 of about 140,783 (253)
Nature Reviews Methods PrimersX-ray absorption spectroscopy (XAS) can be used to analyze electronic structures and local structures around the metal ion in metal complexes. XAS is usually divided into two regions: X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). XANES mainly reflects the electronic structures, and EXAFS contains the
Graham N. George, Ingrid J. Pickering
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Combined X-ray absorption and SEM–EDX spectroscopic analysis for the speciation of thorium in soil
Scientific Reports, 2023 Mobility and bioavailability of radionuclides in the environment strongly depend on their aqueous speciation, adsorption behavior and the solubility of relevant solid phases. In the present context, we focus on naturally occurring Th-232 at a location in
Sanduni Ratnayake +8 more
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CHIMIA, 2011 We review our recent studies of excited state structures and dynamics of chemical and biological systems with pico- and femtosecond X-ray absorption spectroscopy in the liquid phase.
Christopher J. Milne +9 more
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The crucial contribution of X-ray fluorescence spectroscopy in medicine
Comptes Rendus. Chimie, 2021 This contribution tries to indicate to the clinician what kind of information can be investigated through X-ray fluorescence, what kind of information can be extracted from this spectroscopy and finally how it competes with other tools described in ...
Bazin, Dominique +8 more
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Laser plasma x-ray source for ultrafast time-resolved x-ray absorption spectroscopy
Structural Dynamics, 2015 We describe a laser-driven x-ray plasma source designed for ultrafast x-ray absorption spectroscopy. The source is comprised of a 1 kHz, 20 W, femtosecond pulsed infrared laser and a water target.
L. Miaja-Avila +8 more
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Data in Brief, 2019 Control and manipulation of synthesis parameters of thin film coatings is of critical concern in determination of material properties and performance.
R.R. Phiri +4 more
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A polycrystalline diamond micro-detector for X-ray absorption fine-structure measurements
Journal of Synchrotron Radiation, 2022 The microminiaturization of detectors used to record the intensity of X-ray beams is very favorable for combined X-ray experimental techniques. In this paper, chemical-vapor-deposited (CVD) polycrystalline diamond film was used to fabricate a micro ...
Lei Yao +7 more
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Characterization of nanoparticle electrocatalysts using X-ray absorption spectroscopy
Zaštita Materijala, 2015 X-ray absorption spectroscopy (XAS) is a non-destructive spectroscopic technique commonly used with synchrotron radiation source and measures the changes of absorption coefficient as the function of the x-ray energy.
Nebojša Marinković +1 more
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Application of X‐Ray Absorption Spectroscopy in Electrocatalytic Water Splitting and CO2 Reduction
Small Science, 2021 Renewable energy conversion and storage are crucial in aiding the worldwide efforts to replace fossil fuels and achieve carbon neutrality. In particular, electrocatalytic water splitting to obtain H2 and CO2 reduction to high‐value‐added fuels can lead ...
Bin Wang +5 more
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Acta Physica Polonica A, 1994 X-ray absorption spectroscopy, today widely used as a tool for structural investigations, is described. Theoretically it is shown that above an absorption edge the absorption coefficient is well approximated by a sum of terms, each one describing a particular path followed by the photoelectron outgoing from the atom.
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