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1994
Small-angle X-ray scattering (SAXS) was discovered in 1938 by A. Guinier.(1) It is now a powerful method for characterizing catalysts (particle size, surface area) and disordered materials such as gels, sols, defective alloys, porous oxides or carbons, polymers.
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Small-angle X-ray scattering (SAXS) was discovered in 1938 by A. Guinier.(1) It is now a powerful method for characterizing catalysts (particle size, surface area) and disordered materials such as gels, sols, defective alloys, porous oxides or carbons, polymers.
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Small Angle Scattering of Neutrons
Physical Review, 1951The differential and total scattering cross sections have been calculated for slow neutrons impinging on crystalline spheres whose radii are very much greater than the neutron wavelength. The results for the differential cross section show that when the difference, $\ensuremath{\rho}$, between the neutron phase shift in traversing the particle diameter
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Small-Angle Scattering Technique
2019This chapter provides a basic overview of SAXS and SANS techniques, which includes definitions of the basic notions, description of main properties of x-rays and neutrons, a general mathematical background which describes the physical processes in a scattering experiment, and main procedures in experimental data analysis and extraction of structural ...
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Small Angle Neutron Scattering
2016Recent progress on materials for hydrogen storage have pointed out that kinetics and thermodynamics can be modified by nano-confinement of hydrides in porous scaffolds. The investigation of the structural features of these particular systems is challenging with conventional methods, for instance due to the lack of peaks in the diffraction pattern ...
Sabrina Sartori, Kenneth D. Knudsen
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Small Angle Scattering of Solutions
1979The divergence of the synchrotron radiation received by the instruments at about 25m distance from the source is small and therefore ideally suited for small angle scattering experiments. A nearly point-like primary beam with respect to the half-width of the central peak of small angle scattering can be achieved without severe loss of intensity.
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Small-Angle Scattering of Heterogeneous Catalysts
Journal of Applied Crystallography, 1997A heterogeneously catalyzed reaction involves the adsorption of the reactants on the surface of the catalyst. Consequently, catalytic activity is usually strongly related to the microstructural features of the catalyst. Small-angle scattering (SAS) has been extensively used to study heterogeneous catalysts and it has been shown to provide useful ...
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Small Angle Neutron Scattering
Annual Review of Biophysics and Bioengineering, 1983B Jacrot, Giuseppe Zaccai
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Small angle scattering of cell nuclei
European Biophysics Journal, 1986Neutron and X-ray small angle scattering techniques have been applied to study chromatin structure inside different types of cell nuclei. Scattering from genetically inactive chicken erythrocyte nuclei exhibits a maximum at Q = 0.1-0.15 nm-1 which cannot be observed by studying isolated chromatin derived from the same kind of cells.
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Small-Angle Scattering of Catalysts
1995Solid, multicomponent, multiphase catalysts, for example platinum supported on SiO2, play an important technological and economic role. The correlations between catalytic activity and the physical and chemical properties of these materials have been the subject of many investigations (see, for instance, Treacy, Thomas &. White, 1988). From the point of
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