TY  - JOUR
A1  - Sonnenburg, Kirstin
A1  - Adelhelm, Philipp
A1  - Antonietti, Markus
A1  - Smarsly, Bernd
A1  - Nöske, Robert
A1  - Strauch, Peter
T1  - Synthesis and characterization of SiC materials with hierarchical porosity obtained by replication techniques
N2  - 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)
Y1  - 2006
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/31296
UR  - http://pubs.rsc.org/en/Content/ArticleLanding/2006/CP/b604819f
ER  -