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Synthesis of conducting fibers, nanotubes, and thin films of carbon from commercial kerosene

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Title Synthesis of conducting fibers, nanotubes, and thin films of carbon from commercial kerosene
 
Creator KUMAR, M
KICHAMBARE, PD
SHARON, M
ANDO, Y
ZHAO, XL
 
Subject natural source
camphor
cell
fullerenes
nanostructures
vapor deposition
electron microscopy
x-ray diffraction
 
Description Commercial kerosene, commonly used as a cheap fuel for cooking or lighting in underdeveloped areas, has for the first time been found capable of producing conducting fibers, nanotubes, and thin films of carbon. The process of synthesis involves simple pyrolysis of kerosene vapor at 1000 degrees C in argon atmosphere. Various kinds of conducting fibers were obtained, viz., 6-7-cm-long straight fibers (70-75 mu m phi), flexible hair-like fibers (2 mu m phi), soft wool-like fibers (60-250 nm phi), tiny earthworm-like fibers (50 nm phi), rough bitter-gourd-like fibers (3 mu m phi), and uniform hollow fibers (nanotubes of inner and outer diameters of 30 and 80 nm, respectively). Formation of these kerosene-pyrolyzed products and their interrelation are discussed on the basis of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) studies. X-ray diffraction (XRD) analyses of these nanocarbon materials suggest that they have a novel structure, not matching that of known forms of carbon. This conclusion is supported by FTIR and laser-Raman analyses. Thin film of conducting carbon was found to possess an electrochemical potential window as wide as 2.91 V and was effectively used to electrolyte 30% brine solution at a current density of 300 mA cm(-2) at 3 V. It is suggested that the kerosene-pyrolyzed carbon electrodes can be used in the chloro-alkali industry. (C) 1999 .
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-26T20:52:49Z
2011-12-26T12:57:35Z
2011-12-27T05:43:57Z
2011-08-26T20:52:49Z
2011-12-26T12:57:35Z
2011-12-27T05:43:57Z
1999
 
Type Article
 
Identifier MATERIALS RESEARCH BULLETIN, 34(5), 791-801
0025-5408
http://dx.doi.org/10.1016/S0025-5408(99)00066-5
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11431
http://hdl.handle.net/10054/11431
 
Language en