List of records in nano database
IDs:
349
Authors : |
Darabont,A,L;Nemes-Incze,P;Kertész,K;Tapasztó,L;Koós,A,A;Osváth,Z;Sárkozi,Zs;Vértesy,Z;Horváth,Z,E;Biró,L,P |
Title : |
Synthesis of carbon nanotubes by spray pyrolysis and their investigation by electron microscopy |
JournalName : |
J. Optoelectron. Adv. Mater. |
PubDateYear : |
2005 |
PubDateOther : |
|
Volume : |
7 |
Issue : |
|
StartPage : |
631 |
EndPage : |
636 |
Keywords : |
TOP_NanoStructDet;W_Experiment;W_Nanotube;W_SEM;W_TEM |
Notes : |
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Abstract : |
The present work is devoted to the synthesis of carbon nanotubes by spray pyrolysis method.
This procedure is a version of CCVD method (Catalysed Chemical Vapour Deposition).
Using a quartz reactor we have studied the influence of the history of the reactor wall
surface, the lenght of the reactor and different aliphatic, saturated hydrocarbons as carbon
sources on the quality and quantity of the final product. In order to study the influence of the
reactor length on the quantity of the carbon nanotubes produced, we used two reactors of
different lengths. The history of the reactor wall surface was determined by the purification
process applied to the quartz reactor, which was realized with a mixture of hydrofluoric
acid:nitric acid (1:1). This purification process changes the surface structure of the reactor
wall, together with the catalyst, and determines the amount of the final product, which
contains the carbon nanotubes. We have observed that part of the obtained carbon nanotubes
have open endings. The samples obtained were purified and examined by TEM and STM. |
HTML_Local : |
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HTML_Remote : |
http://joam.infim.ro/JOAM/pdf7_2/Dorobant.pdf |
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