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Meso-Structuring of SiCN Ceramics by Polystyrene Templates

A simple one-pot synthesis of well-defined PS-silazane nano-composites (polystyrene, PS) is described. In contrast to the, thus far, used two-step procedure ((1) assembly of a PS template bed and (2) careful filling of the voids between the PS spheres), which is restricted to macro structuring, we a...

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Autores principales: Ewert, Julia-Katharina, Denner, Christine, Friedrich, Martin, Motz, Günter, Kempe, Rhett
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312918/
https://www.ncbi.nlm.nih.gov/pubmed/28347021
http://dx.doi.org/10.3390/nano5020425
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author Ewert, Julia-Katharina
Denner, Christine
Friedrich, Martin
Motz, Günter
Kempe, Rhett
author_facet Ewert, Julia-Katharina
Denner, Christine
Friedrich, Martin
Motz, Günter
Kempe, Rhett
author_sort Ewert, Julia-Katharina
collection PubMed
description A simple one-pot synthesis of well-defined PS-silazane nano-composites (polystyrene, PS) is described. In contrast to the, thus far, used two-step procedure ((1) assembly of a PS template bed and (2) careful filling of the voids between the PS spheres), which is restricted to macro structuring, we are able to simply mix the PS template and a commercially available silazane precursor HTT-1800 in toluene. The key is the alteration of the zeta potential of the PS template leading to a homogeneous dispersion in the silazane-toluene mixture. Removal of solvent gives rise to a highly ordered PS-silazane nano-composites and subsequent pyrolysis leads to mesoporous silicon carbonitride (SiCN) materials. The one-pot procedure has two advantages: easy upscaling and the use of PS spheres smaller than 100 nm in diameter, here 60 nm. The PS template was characterized by photon correlation spectroscopy, zeta potential measurements, scanning electron microscopy (SEM), and thermal gravimetric analysis (TGA). The resulting mesoporous SiCN materials were analyzed by SEM, transmission electron microscopy (TEM), nitrogen sorption analysis, and Fourier transform infrared measurements (FT-IR).
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spelling pubmed-53129182017-03-21 Meso-Structuring of SiCN Ceramics by Polystyrene Templates Ewert, Julia-Katharina Denner, Christine Friedrich, Martin Motz, Günter Kempe, Rhett Nanomaterials (Basel) Article A simple one-pot synthesis of well-defined PS-silazane nano-composites (polystyrene, PS) is described. In contrast to the, thus far, used two-step procedure ((1) assembly of a PS template bed and (2) careful filling of the voids between the PS spheres), which is restricted to macro structuring, we are able to simply mix the PS template and a commercially available silazane precursor HTT-1800 in toluene. The key is the alteration of the zeta potential of the PS template leading to a homogeneous dispersion in the silazane-toluene mixture. Removal of solvent gives rise to a highly ordered PS-silazane nano-composites and subsequent pyrolysis leads to mesoporous silicon carbonitride (SiCN) materials. The one-pot procedure has two advantages: easy upscaling and the use of PS spheres smaller than 100 nm in diameter, here 60 nm. The PS template was characterized by photon correlation spectroscopy, zeta potential measurements, scanning electron microscopy (SEM), and thermal gravimetric analysis (TGA). The resulting mesoporous SiCN materials were analyzed by SEM, transmission electron microscopy (TEM), nitrogen sorption analysis, and Fourier transform infrared measurements (FT-IR). MDPI 2015-03-27 /pmc/articles/PMC5312918/ /pubmed/28347021 http://dx.doi.org/10.3390/nano5020425 Text en © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ewert, Julia-Katharina
Denner, Christine
Friedrich, Martin
Motz, Günter
Kempe, Rhett
Meso-Structuring of SiCN Ceramics by Polystyrene Templates
title Meso-Structuring of SiCN Ceramics by Polystyrene Templates
title_full Meso-Structuring of SiCN Ceramics by Polystyrene Templates
title_fullStr Meso-Structuring of SiCN Ceramics by Polystyrene Templates
title_full_unstemmed Meso-Structuring of SiCN Ceramics by Polystyrene Templates
title_short Meso-Structuring of SiCN Ceramics by Polystyrene Templates
title_sort meso-structuring of sicn ceramics by polystyrene templates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312918/
https://www.ncbi.nlm.nih.gov/pubmed/28347021
http://dx.doi.org/10.3390/nano5020425
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