Journalartikel

Jahr der Veröffentlichung: 2006

Seiten: 3561-3566

Zeitschrift: Physical Chemistry Chemical Physics

Bandnummer: 8

Heftnummer: 30

ISSN: 1463-9076

DOI Link: https://doi.org/10.1039/b604819f

Verlag: Royal Society of Chemistry

Abstract: 
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).

Harvard-Zitierstil: Sonnenburg, K., Adelhelm, P., Antonietti, M., Smarsly, B., Nöske, R. and Strauch, P. (2006) Synthesis and characterization of SiC materials with hierarchical porosity obtained by replication techniques, Physical Chemistry Chemical Physics, 8(30), pp. 3561-3566. https://doi.org/10.1039/b604819f

APA-Zitierstil: Sonnenburg, K., Adelhelm, P., Antonietti, M., Smarsly, B., Nöske, R., & Strauch, P. (2006). Synthesis and characterization of SiC materials with hierarchical porosity obtained by replication techniques. Physical Chemistry Chemical Physics. 8(30), 3561-3566. https://doi.org/10.1039/b604819f