INVESTIGADORES
CANDAL roberto Jorge
artículos
Título:
. The growth of carbon nanotubes on large areas of silicon substrate using commercial iron oxide nanoparticles as a catalyst
Autor/es:
MARCOS FELISBERTO; LEANDRO SACCO; IÑAKI MONDRAGÓN; GERARDO H. RUBIOLO; ROBERTO CANDAL; GOYANES SILVIA
Revista:
MATERIALS LETTERS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2010 vol. 64 p. 2188 - 2190
ISSN:
0167-577X
Resumen:
A new approach to chemical vapour deposition (CVD) growth of carbon nanotubes (CNTs) using commercial
magnetite nanoparticles, avoiding its in situ synthesis, is reported. Commercial magnetite nanoparticles were
used as catalyst material to growth multiwalled carbon nanotubes by chemical vapour deposition onto a
silicon substrate of several square centimeters in area. It is shown that the application of an alternating
electric field during the deposition of catalytical nanoparticles is an effective technique to avoid their
agglomeration allowing nanotube growth. Scanning electron microscopy showed that the nanotubes grow
perpendicularly to the substrate and formed an aligned nanotubes array. The array density can be controlled
by modifying the deposited nanoparticle concentration.
agglomeration allowing nanotube growth. Scanning electron microscopy showed that the nanotubes grow
perpendicularly to the substrate and formed an aligned nanotubes array. The array density can be controlled
by modifying the deposited nanoparticle concentration.
field during the deposition of catalytical nanoparticles is an effective technique to avoid their
agglomeration allowing nanotube growth. Scanning electron microscopy showed that the nanotubes grow
perpendicularly to the substrate and formed an aligned nanotubes array. The array density can be controlled
by modifying the deposited nanoparticle concentration.