scholarly journals CO oxidation over supported gold nanoparticles as revealed by operando grazing incidence X-ray scattering analysis

2018 ◽  
Vol 208 ◽  
pp. 243-254 ◽  
Author(s):  
Yaroslav Odarchenko ◽  
David J. Martin ◽  
Thomas Arnold ◽  
Andrew M. Beale
Keyword(s):  
Gold Nanoparticles ◽  
Co Oxidation ◽  
Phase Transformations ◽  
Au Nanoparticles ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Supported Gold Nanoparticles ◽  
Supported Gold ◽  
Ray Scattering

Operando GISAXS/GIXD studies revealed that supported Au nanoparticles on a flat SiO2/Si(111) support undergo shape and phase transformations during CO oxidation.

scholarly journals Looking by grazing incidence small angle x-ray scattering at gold nanoparticles supported on rutile TiO2(110) during CO oxidation

Gold Bulletin ◽  
2008 ◽  
Vol 41 (2) ◽  
pp. 159-166 ◽  
Author(s):  
M. C. Saint-Lager ◽  
A Bailly ◽  
M. Mantilla ◽  
S. Garaudée ◽  
R. Lazzari ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Co Oxidation ◽  
Small Angle ◽  
Grazing Incidence ◽  
Rutile Tio2 ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Au 4f spin–orbit coupling effects in supported gold nanoparticles

2016 ◽  
Vol 18 (33) ◽  
pp. 22778-22782 ◽  
Author(s):  
Sergey P. Chenakin ◽  
Norbert Kruse
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Effects ◽  
X Ray ◽  
Supported Gold Nanoparticles ◽  
Supported Gold

We reveal that the ratio of spin–orbit components in X-ray photoelectron Au 4f spectra of titania-supported gold nanoparticles deviates from the statistical ratio 4 : 3 and demonstrates an appreciable dependence on the concentration of Au atoms on the surface of TiO2 support and size of Au nanoparticles.

Strain Analysis in Thin La1−xCaxMnO3 Films by Grazing Incidence X-ray Scattering

1999 ◽  
Vol 602 ◽  
Author(s):  
M. Petit ◽  
L. J. Martinez-Miranda ◽  
M. Rajeswari ◽  
A. Biswas ◽  
D. J. Kang ◽  
...  
Keyword(s):  
Film Thickness ◽  
Lattice Mismatch ◽  
Compressive Strain ◽  
Strain Analysis ◽  
Grazing Incidence ◽  
Relaxation Processes ◽  
Near Surface ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

AbstractWe have performed depth profile analyses of the lattice parameters in epitaxial thin films of La1−xCaxMno3 (LCMO), where x = 0.33 or 0.3, to understand the evolution of strain relaxation processes in these materials. The analyses were done using Grazing Incidence X-ray Scattering (GIXS) on films of different thicnesses on two different substrates, (100) oriented LaAlO3 (LAO), with a lattice mismatch of ∼2% and (110) oriented NGO, with a lattice mismatch of less than 0.1%. Films grown on LAO can exhibit up to three in-plane strained lattice constants, corresponding to a slight orthorhombic distortion of the crystal, as well as near-surface and columnar lattice relaxation. As a function of film thickness, a crossover from a strained film to a mixture of strained and relaxed regions in the film occurs in the range of 700 Å. The structural evolution at this thickness coincides with a change in the resistivity curve near the metalinsulator transition. The in-plane compressive strain has a range of 0.2 – 1.5%, depending on the film thickness for filsm in the range of 400 - 1500 A.

A general model for estimating the ordering of mesoporous film by grazing incidence small angle X-ray scattering

2014 ◽  
Vol 115 (20) ◽  
pp. 204311 ◽  
Author(s):  
Nie Zhao ◽  
Chunming Yang ◽  
Qian Zhang ◽  
Xueming Lu ◽  
Yuzhu Wang ◽  
...  
Keyword(s):  
Small Angle ◽  
General Model ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Mesoporous Film ◽  
Ray Scattering

Grazing incidence small angle x-ray scattering from free-standing nanostructures

1999 ◽  
Vol 86 (12) ◽  
pp. 6763-6769 ◽  
Author(s):  
Markus Rauscher ◽  
Rogerio Paniago ◽  
Hartmut Metzger ◽  
Zoltan Kovats ◽  
Jan Domke ◽  
...  
Keyword(s):  
Small Angle ◽  
Grazing Incidence ◽  
Free Standing ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Molecular structure of poly(3-alkyl-thiophenes) investigated by calorimetry and grazing incidence X-ray scattering

2012 ◽  
Vol 97 ◽  
pp. 109-118 ◽  
Author(s):  
Jose Abad ◽  
Nieves Espinosa ◽  
Pilar Ferrer ◽  
Rafael García-Valverde ◽  
Carmen Miguel ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Grazing Incidence ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Erratum: “New reactor dedicated to in operando studies of model catalysts by means of surface x-ray diffraction and grazing incidence small angle x-ray scattering” [Rev. Sci. Instrum. 78, 083902 (2007)]

2007 ◽  
Vol 78 (10) ◽  
pp. 109902 ◽  
Author(s):  
M.-C. Saint-Lager ◽  
A. Bailly ◽  
P. Dolle ◽  
R. Baudoing-Savois ◽  
P. Taunier ◽  
...  
Keyword(s):  
Small Angle ◽  
Grazing Incidence ◽  
Model Catalysts ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Scattering ◽  
In Operando ◽  
Operando Studies ◽  
Ray Scattering
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