Journal
CARBON
Volume 61, Issue -, Pages 386-394Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2013.05.021
Keywords
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Funding
- NSFC [50972022]
- China Postdoctoral Science Foundation [2011M500558, 2012T50256]
- Dalian Bureau of Science and Technology [2011A15GX023]
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Two-dimensional carbon belts (CBs) made of carbon nanofibers (CNFs) supported on a carbon foam (CFoam) substrate have been synthesized by a procedure involving carbonization of polyamic acid (PAA)/Ni(NO3)(2) solution impregnated polyurethane foam in flowing H-2 at 700 degrees C and catalytic chemical vapor deposition (CCVD) using C2H4 as a carbon source and SO2 as a promoter. The CBs, which are hundreds of micrometers in length, several micrometers in width and tens of nanometers in thickness, are made of CNFs with a low degree of graphitization that array with an orientation roughly parallel to the longitudinal axis of the CBs. The results show that the mass ratio of Ni to PAA, a H-2 atmosphere in carbonization and SO2 in CCVD process are the three key factors governing the growth of the CBs. (C) 2013 Elsevier Ltd. All rights reserved.
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