Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Pietro Riello"'
A film-like or a thread-like system is a system such that one of its constituting homogeneous phases has a constant thickness $\delta$ or a constant normal section of largest diameter $\delta$. The stick probability function of this phase, in the lim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72ac45b290bd0325443fb92086f05514
http://hdl.handle.net/10278/3665410
http://hdl.handle.net/10278/3665410
Autor:
Pietro Riello, Salvino Ciccariello
Publikováno v:
Journal of Applied Crystallography. 40:282-289
The correlation functions of samples made up of three homogeneous phases, with a fixed geometrical configuration and different scattering densities, are linearly related among themselves. The same is true of the corresponding scattering intensities.
Publikováno v:
Physical Chemistry Chemical Physics. 3:4614-4619
Pd/SiO2 supported catalysts were investigated using anomalous small-angle X-ray scattering (ASAXS), wide-angle X-ray scattering (WAXS), transmission electron microscopy (TEM) and extended X-ray absorption fine structure spectroscopy (EXAFS). Samples
Publikováno v:
Catalysis Letters. 64:119-124
This study uses X‐ray diffraction (XRD) techniques to investigate the nanostructural features of a series of four Pd/C catalysts, which had the same load, 0.51 ± 0.02 wt%, as palladium, with significantly different dispersions, obtained by applyin
Publikováno v:
Journal of Non-Crystalline Solids. 258:198-206
Several optical glass samples were studied by small-angle X-ray Scattering (SAXS) in order to verify the presence of inhomogeneity in the range (1–100 nm). The results were compared with Rayleigh scattering measurements in order to verify a possibl
Publikováno v:
Journal of Non-Crystalline Solids. :147-154
The microstructure of phase-separated and stretched silver halide particles, embedded in an aluminoborosilicate glass, is studied by small angle X-ray scattering. The data are quantitatively analysed, using a model of prolate ellipsoids of revolution
Publikováno v:
Journal of Applied Crystallography. 28:115-120
On the basis of known equations for calculating X-ray diffraction intensities from a given number of unit cells of a crystal phase in polycrystalline material, as due to: (i) Bragg reflections; (ii) average diffuse scattering caused by thermal plus f
Publikováno v:
Journal of Applied Crystallography. 28:121-126
Rietveld analysis has enabled a determination, by an internal approach, of the degree of crystallinity of a sample of polyethylene terephthalate (PET) and three samples of zirconium oxide obtained by precipitation from ZrOCl2 followed by crystallizat
Publikováno v:
Powder Diffraction. 8:149-154
Complete sets of correction factors for absorption and air scattering effects in X-ray powder diffraction are reported. Both symmetrical reflection and transmission techniques are considered and boundary conditions to be tested for any given value of
Publikováno v:
Journal of synchrotron radiation 9, 65-70 (2002). doi:10.1107/S0909049502000948
Limits and potentiality of anomalous small-angle X-ray scattering for the investigation of supported metal catalysts are discussed. The different sources of statistical errors are illustrated using two catalysts containing metals with absorption edge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ce7d69615e68f58e107c5f4f53c9df2
https://hdl.handle.net/2128/2864
https://hdl.handle.net/2128/2864