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Method for continuous production of catalysts for synthesis of carbon nanotubes
Author(s) -
Lima Márcio D.,
Dettlaff Ursula,
de Andrade Mônica J.,
Skakalová Viera,
Locatelli Andrei,
Bergmann Carlos P.,
Roth Siegmar
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200776156
Subject(s) - carbon nanotube , catalysis , combustion , chemical engineering , evaporation , materials science , carbon fibers , continuous production , solvent , nanotube , porosity , nanotechnology , chemistry , organic chemistry , composite material , physics , composite number , engineering , thermodynamics
A new method for continuous production of carbon nanotube (CNT) catalysts is proposed in this study. The method is a modification of the solution combustion synthesis and was called continuous solution combustion synthesis (CSCS). The method consists of the atomization of the modified combustion synthesis precursor solution in a pilot flame. A combustible, like ethanol, is added to the precursor solution to improve the evaporation of the solvent and the atomization. The ignition of the precursor solution is self‐sufficient. A fine and porous powder is produced. The powder, collected through an electrostatic precipitator, has superior performance as a carbon nanotube catalyst. When comparing the production of Fe–Mo/MgO catalyst synthesized by the continuous method with the conventional route, it was observed that the amount of carbon nanotubes increased by 52 wt%, and the G/D ratio was also higher. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)