期刊
CARBON
卷 50, 期 11, 页码 3987-3994出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2012.04.006
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资金
- Deutscher Akademischer Austauschdienst (DAAD)
- Alexander von Humboldt Foundation
- National Science Foundation (NSF) under the International Collaboration in Chemistry [0924570]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0924570] Funding Source: National Science Foundation
Free-standing films of ordered mesoporous silicon and titanium carbide-derived carbons have been synthesized using a novel soft templating approach without employing hydrofluoric acid. Tetraethyl orthosilicate or titanium citrate, alternatively, and a phenolic resin underwent an evaporation induced self-assembly yielding ordered mesoporous silicon carbide/carbon or titanium carbide/carbon composites. High temperature chlorine treatment transformed these materials conformally into carbide-derived carbons (CDC) while the ordered arrangement of mesopores was maintained. The corresponding hierarchical pore structures consist of narrowly distributed micro- and mesopores (distribution maxima at 1 and 5 nm, respectively) with a high surface area and pore volume of up to 1538 m(2)/g and 2.53 cm(3)/g, respectively. (C) 2012 Elsevier Ltd. All rights reserved.
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