Abstract
The features of diffraction on silver nanoparticles located in channels of mesoporous silicate SBA-15 are analyzed. A computer simulation of diffraction patterns is performed for crystallites with different sizes, the cubic structure, and stacking faults. The experimental diffraction patterns are compared with simulated ones. Together with the stacking fault concentration, the average crystallite sizes are determined in the direction normal to the close packed layers and along the layers in the crystal structure.
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Acknowledgments
The authors are grateful to Drs. E.A. Mel’gunova and M.E. Malyshev for synthesizing SBA-15, I.L. Kraevskaya for determining the silver concentration in Ag/SBA-15, Dr. M.S. Mel’gunov and T.Ya. Efimenko for determining texture characteristics of the Ag/SBA-15 composite.
Funding
The work was carried within the State Contract for the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences (project AAAA-A17-117041710079-8 “Structural diagnostics of ultradisperse and nano structured systems used as catalysts, carriers, sorbents by a complex of diffraction, spectral, adsorption, and electron microscopy techniques”).
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Zyuzin, D.A., Cherepanova, S.V., Moroz, E.M. et al. Features of the Real Structure of Metallic Silver Nanoparticles Located in Channels of Mesoporous Silicate SBA-15. J Struct Chem 60, 2015–2024 (2019). https://doi.org/10.1134/S0022476619120199
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DOI: https://doi.org/10.1134/S0022476619120199