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Spongy carbon nanobeads - a new material

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Title Spongy carbon nanobeads - a new material
 
Creator SHARON, M
MUKHOPADHYAY, K
YASE, K
IIJIMA, S
ANDO, Y
ZHAO, XL
 
Subject natural source
camphor
carbon microbeads
pyrolysis
electron energy loss spectroscopy
camphoric carbon nanobeads
spongy carbon nanobeads
 
Description Spherical carbon nanobeads (solid and hollow) of two sizes of around 500-850 nm (large) and 250 nm (small) were synthesized by pyrolysing camphor vapour at 1000 degrees C in an argon atmosphere, using ferrocene, as catalyst, for the first time. The EEL spectrum suggests the carbon beads to be nongraphitic and these are covered by a graphitic shell of 80-100 nm, revealed by transmission electron microscopy (TEM) micrographs. The larger beads, more than 10 are interconnected by the outer shell. After covering the train of carbon, the beads take the shape of fibrous graphitic carbon which perhaps gives the spongy elastic character to the material. The average surface area of the nanobeads determined by BET studies is calculated to be 16 m(2) g(-1). It is suggested that this material may be a useful anode for secondary lithium ion batteries. (C) 1998 Elsevier Science Ltd. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-10-22T11:59:25Z
2011-12-15T09:10:54Z
2011-10-22T11:59:25Z
2011-12-15T09:10:54Z
1998
 
Type Proceedings Paper
 
Identifier FULLERENES AND CARBON BASED MATERIALS,68,507-511
0-444-20512-8
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14893
http://hdl.handle.net/100/1728
 
Source Symposium A on Fullerenes and Carbon Based Materials, at the European-Materials-Research-Society 1997 Meeting,STRASBOURG, FRANCE,JUN 16-20, 1997
 
Language English