Ceria/silicon carbide core–shell materials prepared by miniemulsion technique
For the first time we present the synthesis of CeO2/Si(O)C core–shell particles prepared by the miniemulsion technique. The Si(O)C core was obtained by means of a polycarbosilane precursor (SMP10), which was subsequently functionalized with ceria and pyrolyzed to the ceramic. The size of these parti...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2011-09-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.2.67 |
| _version_ | 1818952398829256704 |
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| author | Lars Borchardt Martin Oschatz Robert Frind Emanuel Kockrick Martin R. Lohe Christoph P. Hauser Clemens K. Weiss Katharina Landfester Bernd Büchner Stefan Kaskel |
| author_facet | Lars Borchardt Martin Oschatz Robert Frind Emanuel Kockrick Martin R. Lohe Christoph P. Hauser Clemens K. Weiss Katharina Landfester Bernd Büchner Stefan Kaskel |
| author_sort | Lars Borchardt |
| collection | DOAJ |
| description | For the first time we present the synthesis of CeO2/Si(O)C core–shell particles prepared by the miniemulsion technique. The Si(O)C core was obtained by means of a polycarbosilane precursor (SMP10), which was subsequently functionalized with ceria and pyrolyzed to the ceramic. The size of these particles could easily be adjusted by varying the surfactants and the surfactant concentration, or by the addition of comonomers. Hence particle sizes ranged from 100 to 1000 nm, tunable by the preparation conditions. All materials were characterized by photon cross correlation spectroscopy, scanning electron microscopy and elemental mapping investigations. Furthermore, first catalytic tests were carried out by temperature programmed oxidation (TPO) of methane, and the activity of this material in lowering the onset temperature of methane combustion by 262 K was documented. |
| first_indexed | 2024-12-20T09:49:45Z |
| format | Article |
| id | doaj.art-2a5e5519771c425381c553af82607296 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-20T09:49:45Z |
| publishDate | 2011-09-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-2a5e5519771c425381c553af826072962022-12-21T19:44:37ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862011-09-012163864410.3762/bjnano.2.672190-4286-2-67Ceria/silicon carbide core–shell materials prepared by miniemulsion techniqueLars Borchardt0Martin Oschatz1Robert Frind2Emanuel Kockrick3Martin R. Lohe4Christoph P. Hauser5Clemens K. Weiss6Katharina Landfester7Bernd Büchner8Stefan Kaskel9Department of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, D-01062 Dresden, GermanyDepartment of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, D-01062 Dresden, GermanyDepartment of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, D-01062 Dresden, GermanyDepartment of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, D-01062 Dresden, GermanyDepartment of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, D-01062 Dresden, GermanyMax Planck Institut für Polymerforschung, Ackermannweg 10, D-55128 Mainz, GermanyMax Planck Institut für Polymerforschung, Ackermannweg 10, D-55128 Mainz, GermanyMax Planck Institut für Polymerforschung, Ackermannweg 10, D-55128 Mainz, GermanyLeibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Institute for Solid State Research, Helmholtzstrasse 20, 01069 Dresden, GermanyDepartment of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, D-01062 Dresden, GermanyFor the first time we present the synthesis of CeO2/Si(O)C core–shell particles prepared by the miniemulsion technique. The Si(O)C core was obtained by means of a polycarbosilane precursor (SMP10), which was subsequently functionalized with ceria and pyrolyzed to the ceramic. The size of these particles could easily be adjusted by varying the surfactants and the surfactant concentration, or by the addition of comonomers. Hence particle sizes ranged from 100 to 1000 nm, tunable by the preparation conditions. All materials were characterized by photon cross correlation spectroscopy, scanning electron microscopy and elemental mapping investigations. Furthermore, first catalytic tests were carried out by temperature programmed oxidation (TPO) of methane, and the activity of this material in lowering the onset temperature of methane combustion by 262 K was documented.https://doi.org/10.3762/bjnano.2.67ceriacerium dioxidecore shellminiemulsionoxycarbidesilicon carbideTPO catalytic |
| spellingShingle | Lars Borchardt Martin Oschatz Robert Frind Emanuel Kockrick Martin R. Lohe Christoph P. Hauser Clemens K. Weiss Katharina Landfester Bernd Büchner Stefan Kaskel Ceria/silicon carbide core–shell materials prepared by miniemulsion technique Beilstein Journal of Nanotechnology ceria cerium dioxide core shell miniemulsion oxycarbide silicon carbide TPO catalytic |
| title | Ceria/silicon carbide core–shell materials prepared by miniemulsion technique |
| title_full | Ceria/silicon carbide core–shell materials prepared by miniemulsion technique |
| title_fullStr | Ceria/silicon carbide core–shell materials prepared by miniemulsion technique |
| title_full_unstemmed | Ceria/silicon carbide core–shell materials prepared by miniemulsion technique |
| title_short | Ceria/silicon carbide core–shell materials prepared by miniemulsion technique |
| title_sort | ceria silicon carbide core shell materials prepared by miniemulsion technique |
| topic | ceria cerium dioxide core shell miniemulsion oxycarbide silicon carbide TPO catalytic |
| url | https://doi.org/10.3762/bjnano.2.67 |
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