Small-angle X-ray scattering intensity of multiscale models of spheroids
© Pascal Duchêne et al. 2023.
| Veröffentlicht in: | Journal of applied crystallography. - 1998. - 56(2023), Pt 1 vom: 01. Feb., Seite 237-246 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2023
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| Zugriff auf das übergeordnete Werk: | Journal of applied crystallography |
| Schlagworte: | Journal Article Boolean models catalysts multiscale aggregates small-angle X-ray scattering spheroids supports |
| Zusammenfassung: | © Pascal Duchêne et al. 2023. The microstructure of heterogeneous catalysts often consists of multiscale aggregates of nanoparticles, some of which are highly anisotropic. Therefore, small-angle X-ray scattering, in classical or anomalous mode, is a valuable tool to characterize this kind of material. Yet, the classical exploitation of the scattered intensities through form and structure factors or by means of Boolean models of spheres is questionable. Here, it is proposed to interpret the scattered intensities through the use of multiscale Boolean models of spheroids. The numerical procedure to compute scattered intensities of such models is given and then validated on asymptotic diluted Boolean models, and its applicability is demonstrated for the characterization of alumina catalyst supports |
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| Beschreibung: | Date Revised 12.09.2024 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
| ISSN: | 0021-8898 |
| DOI: | 10.1107/S1600576722011359 |