期刊
CARBON
卷 60, 期 -, 页码 514-522出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2013.04.081
关键词
-
资金
- NSFC [50972022, 21276045]
- China Postdoctoral Science Foundation [2011M500558, 2012T50256]
- Dalian Bureau of Science and Technology [2011A15GX023]
Carbon foams (CFoams) were made by combining a hard template with a catalytic graphitization method, in which polyurethane foam is used as a sacrificial template, polyamic acid is used as carbon source and Ni is used as catalyst. The cell walls of CFoams are made of in situ self-assembled carbon nanocapsules (CNCs) with diameters of 30-80 nm. The open cells of the CFoams are, on average, 500 mu m in diameter, and the cell walls are mesoporous. Thermogravimetric analysis reveals that CNCs account for about 85 wt.% of the CFoams (exclusive of the Ni). The CFoams show high activity and selectivity in the reaction of oxidative dehydrogenation of ethylbenzene to styrene. (C) 2013 Elsevier Ltd. All rights reserved.
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