Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles

The vibrational dynamics in the sub-THz range of mesoporous silica nanoparticles (MSNs) having ordered cylindrical mesopores was investigated. MCM-41 and SBA-15 particles were synthesized, and their structure was determined using scanning electron microscopy (SEM), low-angle X-ray diffraction (XRD),...

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Autores principales: Hernando Abad, Eduardo, Bouyer, Frédéric, Chaabane, Laroussi, Zerrouki, Alan, Margueritat, Jérémie, Saviot, Lucien
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384747/
https://www.ncbi.nlm.nih.gov/pubmed/37513089
http://dx.doi.org/10.3390/nano13142078
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author Hernando Abad, Eduardo
Bouyer, Frédéric
Chaabane, Laroussi
Zerrouki, Alan
Margueritat, Jérémie
Saviot, Lucien
author_facet Hernando Abad, Eduardo
Bouyer, Frédéric
Chaabane, Laroussi
Zerrouki, Alan
Margueritat, Jérémie
Saviot, Lucien
author_sort Hernando Abad, Eduardo
collection PubMed
description The vibrational dynamics in the sub-THz range of mesoporous silica nanoparticles (MSNs) having ordered cylindrical mesopores was investigated. MCM-41 and SBA-15 particles were synthesized, and their structure was determined using scanning electron microscopy (SEM), low-angle X-ray diffraction (XRD), N(2) physisorption analyses, and Raman scattering. Brillouin scattering measurements are reported and enabled determining the stiffness of the silica walls (speed of sound) using finite element calculations for the ordered mesoporous structure. The relevance of this approach is discussed based on the comparison between the numerical and experimental results and previous works reported in the literature.
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spelling pubmed-103847472023-07-30 Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles Hernando Abad, Eduardo Bouyer, Frédéric Chaabane, Laroussi Zerrouki, Alan Margueritat, Jérémie Saviot, Lucien Nanomaterials (Basel) Article The vibrational dynamics in the sub-THz range of mesoporous silica nanoparticles (MSNs) having ordered cylindrical mesopores was investigated. MCM-41 and SBA-15 particles were synthesized, and their structure was determined using scanning electron microscopy (SEM), low-angle X-ray diffraction (XRD), N(2) physisorption analyses, and Raman scattering. Brillouin scattering measurements are reported and enabled determining the stiffness of the silica walls (speed of sound) using finite element calculations for the ordered mesoporous structure. The relevance of this approach is discussed based on the comparison between the numerical and experimental results and previous works reported in the literature. MDPI 2023-07-15 /pmc/articles/PMC10384747/ /pubmed/37513089 http://dx.doi.org/10.3390/nano13142078 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hernando Abad, Eduardo
Bouyer, Frédéric
Chaabane, Laroussi
Zerrouki, Alan
Margueritat, Jérémie
Saviot, Lucien
Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles
title Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles
title_full Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles
title_fullStr Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles
title_full_unstemmed Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles
title_short Sub-THz Vibrational Dynamics in Ordered Mesoporous Silica Nanoparticles
title_sort sub-thz vibrational dynamics in ordered mesoporous silica nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384747/
https://www.ncbi.nlm.nih.gov/pubmed/37513089
http://dx.doi.org/10.3390/nano13142078
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