Results 21 to 30 of about 12,386 (281)

Detection the structure-activity relationship of  platinum-bismuth catalyst in methane oxidation by X-ray adsorption fine structure

He jishu, 2021
Background060102PurposeThis study aims to detect the interaction between platinum (Pt) and bismuth (Bi) species and their "structure-activity" relationship in methane oxidation through X-ray absorption fine structure (XAFS) technology.MethodsFirst of all,
NAN Bing, HUANG Yuying, LI Lina
doaj   +1 more source

Development of XAFS theory

Journal of Synchrotron Radiation, 2003
A major goal of theoretical simulations of X-ray absorption fine structure (XAFS) is to provide calculations for the interpretation and analysis of experimental data in terms of geometrical and electronic information. The extended region or EXAFS (50-2000 eV above an absorption edge) contains geometric information about the pair distribution function ...
A L, Ankudinov, J J, Rehr
openaire   +2 more sources

Deglitching procedure for XAFS

Journal of Synchrotron Radiation, 2001
A computer program for eliminating artifacts such as glitches and Bragg peaks of the polarized XAFS spectra is presented. It permits to easily locate and to eliminate from the EXAFS spectra the additional signals originated from the Bragg scattering by crystalline samples.
K N, Zhuchkov, V A, Shuvaeva, K, Yagi, H, Terauchi   +3 more
openaire   +2 more sources

Pd-catalyzed decarbonylation of furfural: Elucidation of support effect on Pd size and catalytic activity using in-situ XAFS

Journal of Catalysis, 2019
Palladium (Pd) clusters on zirconia (ZrO2) and single Pd atoms on ceria (CeO2) exhibited high catalytic activity and selectivity for decarbonylation of furfural to furan without additives in the liquid phase. To study the active size of Pd and changes in
T. Ishida, T. Honma, K. Nakada, H. Murayama, Tetsuya Mamba, Kurumi Kume, Yusuke Izawa, M. Utsunomiya, M. Tokunaga   +8 more
semanticscholar   +1 more source

X-ray Absorption Fine Structure (XAFS) Studies of Oxide Glasses—A 45-Year Overview

Materials, 2018
X-ray Absorption Fine Structure (XAFS) spectroscopy has been widely used to characterize the short-range order of glassy materials since the theoretical basis was established 45 years ago.
V. Mastelaro, Edgar Dutra Zanotto
semanticscholar   +1 more source

Operando XAFS Studies on Rh(CAAC)-Catalyzed Arene Hydrogenation

ACS Catalysis, 2019
Rh K-edge X-ray absorption fine structure (XAFS) spectroscopy was used to examine the Rh-catalyzed arene hydrogenation of diphenyl ether by a combination of stoichiometric reactions of [(CAACCy,Dipp)Rh(COD)Cl] (Rh–Cl) (CAACCy,Dipp = cyclic alkyl amino ...
B. L. Tran, J. Fulton, J. Linehan, M. Balasubramanian, J. Lercher, R. Bullock   +5 more
semanticscholar   +1 more source

29Si solid state NMR and Ti K-edge XAFS pre-edge spectroscopy reveal complex behavior of Ti in silicate melts

Progress in Earth and Planetary Science, 2020
An understanding of the mechanisms of Ti is incorporation into silicate glasses and melts is critical for the field of petrology. Trace-element thermobarometry, high-field-strength element partitioning, and the physical properties of magmas are all be ...
Michael R. Ackerson, George D. Cody, Bjorn O. Mysen   +2 more
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High-flux XAFS-beamline P64 at PETRA III

, 2019
Beamline P64 at PETRA III is dedicated to x-ray absorption spectroscopy experiments which require high flux, like quick extended x-ray absorption fine structure spectroscopy on the sub-second time scale, high-resolution resonant emission spectroscopy ...
W. Caliebe, A. Kalinko, Vadim Murzin, M. Görlitz   +3 more
semanticscholar   +1 more source

Local structure of solid and liquid gold probed by reverse Monte Carlo analysis of X-ray absorption data

Journal of Synchrotron Radiation
The increase in computational capabilities of modern computers has allowed us to develop new accurate methods for EXAFS (extended X-ray absorption fine structure) data-analysis.
Nodoka Hara, Fabio Iesari, Toshihiro Okajima, Andrea Di Cicco   +3 more
doaj   +1 more source

Operando characterization of batteries using x-ray absorption spectroscopy: advances at the beamline XAFS at synchrotron Elettra

, 2017
X-ray absorption spectroscopy is a synchrotron radiation based technique that is able to provide information on both local structure and electronic properties in a chemically selective manner.
G. Aquilanti, M. Giorgetti, R. Dominko, L. Stievano, I. Arčon, N. Novello, L. Olivi   +6 more
semanticscholar   +1 more source