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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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2015
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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). |
format | Online Article Text |
id | pubmed-5312918 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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