Results 41 to 50 of about 140,211 (136)

The Inner Shell Spectroscopy beamline at NSLS-II: a facility for in situ and operando X-ray absorption spectroscopy for materials research

Journal of Synchrotron Radiation, 2022
The Inner Shell Spectroscopy (ISS) beamline on the 8-ID station at the National Synchrotron Light Source II (NSLS-II), Upton, NY, USA, is a high-throughput X-ray absorption spectroscopy beamline designed for in situ, operando, and time-resolved material ...
Denis Leshchev, Maksim Rakitin, Bruno Luvizotto, Ruslan Kadyrov, Bruce Ravel, Klaus Attenkofer, Eli Stavitski   +6 more
doaj   +1 more source

Visualization of elemental distributions and local analysis of element-specific chemical states of an Arachnoidiscus sp. frustule using soft X-ray spectromicroscopy.

PLoS ONE, 2020
Using soft X-ray (SX) spectromicroscopy, we show maps of the spatial distribution of constituent elements and local analysis of the density of states (DOS) related to the element-specific chemical states of diatom frustules, which are composed of ...
Tomoko Ishihara, Takuo Ohkochi, Akinobu Yamaguchi, Yoshinori Kotani, Masaki Oura   +4 more
doaj   +1 more source

X-ray absorption spectroscopy of organic sulfoxides

RSC Advances, 2020
This study develops an understanding of the X-ray absorption near-edge spectra of organic sulfoxides using the sulfur and oxygen K-edges.
Linda I. Vogt, Julien J. H. Cotelesage, Natalia V. Dolgova, Charles J. Titus, Samin Sharifi, Simon J. George, Ingrid J. Pickering, Graham N. George   +7 more
openaire   +3 more sources

Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory

Condensed Matter Physics, 2012
We examine the core-level X-ray photoemission spectroscopy (XPS), X-ray absorption near-edge spectroscopy (XANES) and X-ray emission spectroscopy (XES) in the Falicov-Kimball model by using the exact solution from dynamical mean-field theory.
A.M. Shvaika, J.K. Freericks
doaj   +1 more source

Spectral Decomposition of X-ray Absorption Spectroscopy Datasets: Methods and Applications

Crystals, 2020
X-ray absorption spectroscopy (XAS) today represents a widespread and powerful technique, able to monitor complex systems under in situ and operando conditions, while external variables, such us sampling time, sample temperature or even beam position ...
Andrea Martini, Elisa Borfecchia
doaj   +1 more source

DAFNE-Light DXR1 Soft X-Ray Synchrotron Radiation Beamline: Characteristics and XAFS Applications

Condensed Matter, 2019
X-ray Absorption Fine Structure Spectroscopy (XAFS) is a powerful technique to investigate the local atomic geometry and the chemical state of atoms in different types of materials, especially if lacking a long-range order, such as nanomaterials, liquids,
Antonella Balerna
doaj   +1 more source

X-ray Absorption Spectroscopy Unveils the Formation of Gold Nanoparticles in Corn X-ray Absorption Spectroscopy Unveils the Formation of Gold Nanoparticles in Corn

Acta Universitaria, 2012
En este estudio se determinó, mediante espectroscopía de absorción de rayos-X, la posible biotransformación de oro en maíz (variedad Golden) que se germinó y creció en KAuCl4.
Gustavo Cruz-Jiménez, Martha Laura López, Hiram Castillo-Michel, José Ramón Peralta-Videa, Jasón G. Parsons, Jessica Torres, Jorge Luis Gardea-Torresdey, Guadalupe De la Rosa   +7 more
doaj  

Biological X-ray absorption spectroscopy and metalloproteomics

Journal of Synchrotron Radiation, 2009
In the past seven years the size of the known protein sequence universe has been rapidly expanding. At present, more then five million entries are included in the UniProtKB/TrEMBL protein database. In this context, a retrospective evaluation of recent X-ray absorption studies is undertaken to assess its potential role in metalloproteomics ...
Isabella, Ascone, Richard, Strange
openaire   +2 more sources

X‐Ray Absorption Spectroscopy Probing of Gold Electro‐Oxidation Reveals Intermediate Surficial Au(I)

ChemElectroChem
While Au electro‐oxidation in acidic aqueous media on a phenomenological level proceeds directly from Au(0) to Au(III), it has previously been suggested that Au(I) states are intermediate species of the oxidation mechanism.
David Degerman, Sara Boscolo Bibi, Bernadette Davies, Vladimir Grigorev, Aleksandr Kalinko, Tony Hansson, Sergey Koroidov   +6 more
doaj   +1 more source

Operando Spectroscopy to Understand Dynamic Structural Changes of Solid Catalysts

CHIMIA
Solid materials like heterogeneous catalysts are highly dynamic and continuously tend to change when exposed to the reaction environment. To understand the catalyst system under true reaction conditions,operando spectroscopy is the key to unravel small ...
Bidyut Bikash Sarma, Jan-Dierk Grunwaldt
doaj   +1 more source