Results 41 to 50 of about 21,282 (312)
Simulating the XANES of metalloenzymes – a case study
Journal of Synchrotron Radiation, 2002 The analysis of XANES patterns is very indicative for screening samples. Powerful X-ray absorption spectroscopy data-analysis programs can simulate these patterns. Here, a case study on two structural motifs is presented: a non-heme Fe site (2-His-1-carboxylate motif) and the metallo β-lactamase dinuclear Zn site.
Mijovilovich, Ana +1 more
openaire +3 more sources
A Rebirth of Laboratory XANES and XES [PDF]
Acta Crystallographica Section A Foundations and Advances, 2014 We have recently launched a reinvestigation of laboratory-based measurement of x-ray absorption near edge structure (XANES) and high-resolution x-ray emission spectroscopy (XES). Driven by the roughly one-hundred-fold improvement in the efficiency of high resolution x-ray optics compared to the 1970's, we have demonstrated that surprisingly impressive ...
Gerald Seidler +3 more
openaire +1 more source
Advanced Materials, EarlyView.Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
wiley +1 more source
Background sequence prediction for TXM-XANES based on polynomial regression and linear interpolation
He jishuBackgroundFull-field transmission X-ray microscopy (TXM)–X-ray absorption near-edge structural (XANES) (TXM-XANES) is an imaging method that combines TXM and XANES.
XING Yanjun +5 more
doaj +1 more source
Biologia Plantarum, 2017 Selenium (Se) is an essential trace element for humans and animals. A hydroponic experiment was performed to study the effects of sulphur (S) on Se uptake, translocation, and assimilation in wheat (Triticum aestivum L.) seedlings.
Q. Q. Huang +5 more
doaj +1 more source
Understanding electronic structure of Bi(Pb)-Sr-Ca-Cu-O compounds by XANES
, 2009 We report X-ray absorption near edge structure (XANES) of Cu and O K-edges of superconducting [Bi(Pb)]2Sr2CaCu2O8+δ (Bi-2212) and [Bi(Pb)]2Sr2Ca2Cu3O10+δ (Bi-2223) compounds.
Asokan, Kandasami; Jan, J. C.; Chiou, J. W.; Tsai, H. M.; 彭維鋒; Pong, Way-Faung; Yang, C. L.; 錢凡之; Chien, F. Z.
core +1 more source
Advanced Materials, EarlyView.Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim +17 more
wiley +1 more source
XANES spectra of transition metal compounds
, 2009 An overview is given of the interactions that determine the XANES spectral shapes of transition metal compounds. The interactions are divided into ground state effects, final state effects and transition effects.
de Groot, F.M.F.
core +2 more sources
Web-CONEXS: an inroad to theoretical X-ray absorption spectroscopy
Journal of Synchrotron RadiationAccurate analysis of the rich information contained within X-ray spectra usually calls for detailed electronic structure theory simulations. However, density functional theory (DFT), time-dependent DFT and many-body perturbation theory calculations ...
Joshua D. Elliott +7 more
doaj +1 more source
Local Structure and Magnetism of LiFeSi0.01P0.99O4/C as a Cathode Material on Lithium-Ion Battery
Journal of Magnetism and Its Applications, 2021 The oxidation state and local structure of LiFeSi0.01P0.99O4/C composites as a cathode on lithium-ion battery were investigated by Fe K-edge X-ray Absorption Near Edge Spectroscopy (XANES) and Extended X-ray Absorption Fine Structure (EXAFS). The LiFeSi0.
Vera Laviara Maghfirohtuzzoimah +7 more
doaj +1 more source