Evolution of porosity in carbide-derived carbon aerogels.

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Oschatz M, Nickel W, Thommes M, Cychosz KA, Leistner M, Adam M, Mondin G, Strubel P, Borchardt L, Kaskel S
Zeitschrift: Journal of Materials Chemistry A
Verlag: Royal Society of Chemistry
Jahr der Veröffentlichung: 2014
Band: 2
Heftnummer: 43
Seitenbereich: 18472-18479-18479
ISSN: 2050-7488


Abstract

Carbide-derived carbon (CDC) aerogel monoliths with very high porosity are synthesized starting from polymeric precursors. Crosslinking by platinum-catalyzed hydrosilylation of polycarbosilanes followed by supercrit. drying yields preceramic aerogels. After ceramic conversion and silicon extn. in hot chlorine gas, hierarchically porous carbon materials with sp. surface areas ≤2122 m2.g-1 and outstanding total pore vols. close to 9 cm3.g-1 are obtained. Their pore structure is controllable by the applied synthesis temp. as shown by combined nitrogen (-196 °C) and carbon dioxide (0 °C) measurements coupled with electron microscopic methods. The combination of large micropore vols. and the aerogel-type pore system leads to advanced adsorption properties due to a combination of large storage capacities and effective materials transport in comparison with purely microporous ref. materials as shown by thermal response measurements. [on SciFinder(R)]


Einrichtungen weiterer Autorinnen und Autoren

Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS) / Fraunhofer Institute for Material and Beam Technology
Quantachrome Instruments
Technische Universität Dresden


Zitierweisen

APA:
Oschatz, M., Nickel, W., Thommes, M., Cychosz, K.A., Leistner, M., Adam, M.,... Kaskel, S. (2014). Evolution of porosity in carbide-derived carbon aerogels. Journal of Materials Chemistry A, 2(43), 18472-18479-18479. https://dx.doi.org/10.1039/C4TA03401E

MLA:
Oschatz, Martin, et al. "Evolution of porosity in carbide-derived carbon aerogels." Journal of Materials Chemistry A 2.43 (2014): 18472-18479-18479.

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Zuletzt aktualisiert 2019-15-03 um 09:49