Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-09-01

Journal: CARBON

Included Journals: Scopus、EI、SCIE

Volume: 61

Page Number: 386-394

ISSN: 0008-6223

Abstract: 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.