Journal Article

FZJ-2023-02567

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Nanoarhitectonics of Inorganic–Organic Silica–Benzil Composites: Synthesis, Nanocrystal Morphology and Micro-Raman Analysis

Shchur, Y. (Corresponding author) ; Bendak, A. ; Beltramo, G.FZJ* ; Andrushchak, A. S. ; Vitusevich, S.FZJ* ; Pustovyj, D.FZJ* ; Sahraoui, B. ; Slyvka, Y. ; Kityk, A. V.

2023
MDPI Basel

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Please use a persistent id in citations: doi:10.3390/nano13131913  doi:10.34734/FZJ-2023-02567

Abstract: The synthesis of nanosized organic benzil (C6H5CO)2 crystals within the mesoporous SiO2 host matrix was investigated via X-ray diffraction, transmission electron microscopy, Raman spectroscopy, and ab initio lattice dynamics analysis. Combining these methods, we have proved that the main structural properties of benzil nanocrystals embedded into SiO2 host membranes with pore diameters of 6.0, 7.8, 9.4, and 13.0 nm are preserved compared to a bulk benzil crystal. Space confinement has an insignificant impact on the lattice vibrational properties of benzil crystals implanted into the host matrices. The ab initio lattice dynamics calculation of the phonon spectrum in the Brillouin zone center shows the mechanical and dynamical stability of benzil lattice, revealing very low optical frequency of 11 cm−1 at point Γ.

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Contributing Institute(s):

1. Mechanobiologie (IBI-2)

Research Program(s):

1. 5243 - Information Processing in Distributed Systems (POF4-524) (POF4-524)

Appears in the scientific report 2023

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