scholarly journals EXAFS Spectroscopy of Some Iron(III) Compounds by Use of Dispersive-type In-laboratory X-Ray Spectrometer

1982 ◽  
Vol 55 (12) ◽  
pp. 3911-3914 ◽  
Author(s):  
Masaharu Nomura ◽  
Kiyotaka Asakura ◽  
Ukyo Kaminaga ◽  
Tadashi Matsushita ◽  
Kazutake Kohra ◽  
...  
Keyword(s):  
Exafs Spectroscopy ◽  
X Ray

X-ray diffraction, neutron scattering and EXAFS spectroscopy of monoclinic zirconia: analysis by Rietveld refinement and reverse Monte Carlo simulations

2002 ◽  
Vol 35 (4) ◽  
pp. 434-442 ◽  
Author(s):  
Markus Winterer ◽  
Robert Delaplane ◽  
Robert McGreevy
Keyword(s):  
Monte Carlo ◽  
Neutron Scattering ◽  
Rietveld Refinement ◽  
Local Structure ◽  
Exafs Spectroscopy ◽  
Scattering Data ◽  
Accurate Information ◽  
Reverse Monte Carlo ◽  
Monoclinic Zirconia ◽  
X Ray

Extended X-ray absorption fine structure (EXAFS) and neutron scattering data from monoclinic zirconia are analysed independently and simultaneously by reverse Monte Carlo (RMC) modelling. X-ray and neutron powder diffraction data are analysed by Rietveld refinement. The results are compared with respect to the local structure around the zirconium cations. Monoclinic zirconia was chosen as a model system for the comparison of structural information obtained by EXAFS spectroscopy and scattering methods because it is crystalline but also has some local disorder. In the case of zirconia, analysis of EXAFS spectra by RMC modelling results in reliable and accurate information on the local structure, consistent with neutron scattering and diffraction experiments.

scholarly journals Solvent-dependent nuclearity, geometry and catalytic activity of [(SPhos)Pd(Ph)Cl]2

2017 ◽  
Vol 46 (22) ◽  
pp. 7223-7231 ◽  
Author(s):  
John B. Brazier ◽  
Mark A. Newton ◽  
Elena M. Barreiro ◽  
Luis A. Adrio ◽  
Leticia Naya ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Catalytic Activity ◽  
Fine Structure ◽  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
Palladium Complex ◽  
Exafs Spectroscopy ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

The nuclearity and structures of the palladium complex [(SPhos)Pd(Ph)Cl]2 in the solid and solution states are revisited using a combination of Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy, NMR spectroscopy, mass spectrometry, DFT calculations and trapping experiments.

Exafs Studies of Defects in β-Alumina Superionic Conductors

1984 ◽  
Vol 41 ◽  
Author(s):  
W. L. Roth ◽  
R. Wong
Keyword(s):  
Solid Solution ◽  
Neutron Diffraction ◽  
Bond Strength ◽  
Exafs Spectroscopy ◽  
Superionic Conductors ◽  
Rhombohedral Structure ◽  
Substantial Fraction ◽  
X Ray ◽  
Local Structures ◽  
Preliminary Study

AbstractThe local structures of Zn and Co in solid solution in Na βN–alumina have been investigated using EXAFS spectroscopy. These additives are members of a group that must be incorporated in βN–alumina to stabilize the rhombohedral structure. It is found that they are tetrahedrally coordinated to four oxygen atoms. The N–O bond distances are larger than the Al–O distance in β–alumina and larger than the Al(2)–O distances in disordered crystals determined by x-ray and neutron diffraction. The bonds about individual ions and mixtures of ions are consistent with predictions from bond-strength-bonddistance theory. A preliminary study of Na β–alumina that has been implanted with in and annealed indicates that a substantial fraction of the Mn is tetrahedrally coordinated.

Structural investigation of supported Cun clusters under vacuum and ambient air conditions using EXAFS spectroscopy

2016 ◽  
Vol 6 (18) ◽  
pp. 6942-6952 ◽  
Author(s):  
S. Peredkov ◽  
S. Peters ◽  
M. Al-Hada ◽  
A. Erko ◽  
M. Neeb ◽  
...  
Keyword(s):  
Fine Structure ◽  
Structural Analysis ◽  
Structural Investigation ◽  
Ambient Air ◽  
Exafs Spectroscopy ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

Structural analysis of deposited nanoclusters using extended X-ray absorption fine structure (EXAFS) spectroscopy.

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