Local structure and dynamics of hemeproteins by X-ray absorption near edge structure spectroscopy

2012 ◽  
Vol 112 ◽  
pp. 93-99 ◽  
Author(s):  
Alessandro Arcovito ◽  
Stefano della Longa
Keyword(s):  
Local Structure ◽  
Edge Structure ◽  
X Ray ◽  
Structure And Dynamics ◽  
X Ray Absorption

scholarly journals Local Structure and Dynamics of Functional Materials Studied by X-ray Absorption Fine Structure

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1315
Author(s):  
Takafumi Miyanaga
Keyword(s):  
Fine Structure ◽  
Local Structure ◽  
Chemical Reactivity ◽  
Functional Materials ◽  
X Ray ◽  
Structure And Dynamics ◽  
Absorption Fine ◽  
Structure Phase Transition ◽  
Local Electronic Structure ◽  
X Ray Absorption

X-ray absorption fine structure (XAFS) is a powerful technique used to analyze a local electronic structure, local atomic structure, and structural dynamics. In this review, I present examples of XAFS that apply to the local structure and dynamics of functional materials: (1) structure phase transition in perovskite PbTiO3 and magnetic FeRhPd alloys; (2) nano-scaled fluctuations related to their magnetic properties in Ni–Mn alloys and Fe/Cr thin films; and (3) the Debye–Waller factors related to the chemical reactivity for catalysis in polyanions and ligand exchange reaction. This study shows that the local structure and dynamics are related to the characteristic function of the materials.

scholarly journals Solving local structure around dopants in metal nanoparticles with ab initio modeling of X-ray absorption near edge structure

2016 ◽  
Vol 18 (29) ◽  
pp. 19621-19630 ◽  
Author(s):  
Janis Timoshenko ◽  
Atal Shivhare ◽  
Robert W. J. Scott ◽  
Deyu Lu ◽  
Anatoly I. Frenkel
Keyword(s):  
Ab Initio ◽  
Metal Nanoparticles ◽  
Local Structure ◽  
Heterogeneous Catalysts ◽  
Edge Structure ◽  
X Ray ◽  
Metal Impurities ◽  
Local Environments ◽  
X Ray Absorption ◽  
Xanes Analysis

XANES analysis guided by ab initio modeling is proposed for refinement of local environments around metal impurities in heterogeneous catalysts.

scholarly journals Neural network assisted analysis of bimetallic nanocatalysts using X-ray absorption near edge structure spectroscopy

2020 ◽  
Vol 22 (34) ◽  
pp. 18902-18910 ◽  
Author(s):  
Nicholas Marcella ◽  
Yang Liu ◽  
Janis Timoshenko ◽  
Erjia Guan ◽  
Mathilde Luneau ◽  
...  
Keyword(s):  
Neural Network ◽  
Local Structure ◽  
Bimetallic Nanoparticles ◽  
Edge Structure ◽  
X Ray ◽  
Coordination Numbers ◽  
Rich Information ◽  
Bimetallic Nanocatalysts ◽  
Assisted Analysis ◽  
X Ray Absorption

Trained neural networks are used to extract the first partial coordination numbers from XANES spectra. In bimetallic nanoparticles, the four local structure descriptors provide rich information on structural motifs.

Local Structure of Pr, Nd, and Sm Complex Oxides and Their X-ray Absorption Near Edge Structure Spectra

2014 ◽  
Vol 118 (36) ◽  
pp. 20881-20888 ◽  
Author(s):  
Hiroyuki Asakura ◽  
Tetsuya Shishido ◽  
Shingo Fuchi ◽  
Kentaro Teramura ◽  
Tsunehiro Tanaka
Keyword(s):  
Local Structure ◽  
Complex Oxides ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Cover Picture: Local Structure Study of Lanthanide Elements by X‐Ray Absorption Near Edge Structure Spectroscopy (Chem. Rec. 7/2019)

2019 ◽  
Vol 19 (7) ◽  
pp. 1155-1155 ◽  
Author(s):  
Hiroyuki Asakura ◽  
Saburo Hosokawa ◽  
Kentaro Teramura ◽  
Tsunehiro Tanaka
Keyword(s):  
Local Structure ◽  
Structure Study ◽  
Edge Structure ◽  
X Ray ◽  
Lanthanide Elements ◽  
X Ray Absorption
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