Synthesis and characterization of SiC materials with hierarchical porosity obtained by replication techniques
- Porous silicon carbide monoliths were obtained using the infiltration of preformed SiO2 frameworks with appropriate carbon precursors such as mesophase pitch. The initial SiO2 monoliths possessed a hierarchical pore system, composed of an interpenetrating bicontinuous macropore structure and 13 nm mesopores confined in the macropore walls. After carbonization, further heat treatment at ca. 1400 degrees C resulted in the formation of a SiC-SiO2 composite, which was converted into a porous SiC monolith by post-treatment with ammonium fluoride solution. The resulting porous SiC featured high crystallinity, high chemical purity and showed a surface area of 280 m(2) g(-1) and a pore volume of 0.8 ml g(-1)
| Author details: | Kirstin Sonnenburg, Philipp AdelhelmORCiD, Markus AntoniettiORCiDGND, Bernd Smarsly, Robert Nöske, Peter StrauchGND |
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| URL: | http://pubs.rsc.org/en/Content/ArticleLanding/2006/CP/b604819f |
| DOI: | https://doi.org/10.1039/B604819F |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2006 |
| Publication year: | 2006 |
| Release date: | 2017/03/25 |
| Source: | Physical chemistry chemical physics. - 8 (2006), 30, S. 3561 - 3566 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
| Peer review: | Referiert |
| Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für anorganische Chemie und Didaktik der Chemie |
