Cold-wall CVD carbon nanotube synthesis on porous alumina substrates |
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Authors: | G Ortega-Cervantez G Rueda-Morales J Ortiz-López |
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Affiliation: | (1) Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Edificio 9, UPALM-Zacatenco, 07738 Mexico, DF, Mexico |
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Abstract: | Carbon nanotubes were synthesized by chemical vapor deposition (CVD) using ethanol vapor as carbon source. Catalysts were
Co and Mo metallic particles obtained from the corresponding acetates dissolved in ethanol. Acetate solutions are deposited
on porous alumina substrates by dip coating. A dense array of aligned carbon nanotubes perpendicular to the substrate surface
grow with 20 min exposure to ethanol vapor flow for substrate temperatures between 650 and 830 °C. Sample analysis is performed
with scanning electron microscopy and Raman spectroscopy. |
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Keywords: | |
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