TY - JOUR
T1 - Carbon nanotube bundles self-assembled in double helix microstructures
AU - Cervantes-Sodi, Felipe
AU - Vilatela, Juan J.
AU - Jiménez-Rodríguez, José A.
AU - Reyes-Gutiérrez, Lucio G.
AU - Rosas-Meléndez, Samuel
AU - Íñiguez-Rábago, Agustín
AU - Ballesteros-Villarreal, Mónica
AU - Palacios, Eduardo
AU - Reiband, Gerd
AU - Terrones, Mauricio
N1 - Funding Information:
The authors acknowledge CID for access to SEM facilities. FCS acknowledges fruitful discussions with MSc Carlos San Esteban and funding from Direccion de Investigacion, Universidad Iberoamericana and SNI-CONACYT. JJV acknowledges financial support from CONACYT (México) and MICINN thorough its Juan de la Cierva Programme. MT acknowledges the support from the Research Center for Exotic Nanocarbons, Japan regional Innovation Strategy Program by the Excellence, JST.
PY - 2012/8
Y1 - 2012/8
N2 - Double helix microstructures consisting of two parallel strands, each composed of hundreds of multiwalled carbon nanotubes (MWCNTs) are synthesised by chemical vapour deposition (CVD) of ferrocene/toluene vapours on thermochemically treated metal substrates, such as steel, Cu, Al and W. The thermochemical treatment produces a thin and brittle layer of SiO x. During the CVD process, carbon nanotubes (CNT) grow adhered to this layer, and as growth progresses, small SiO x microparticles detach from the substrate, directing the helical development of the growing MWCNTs double strands. This growth model for the helical microstructures is compared in the manuscript with models previously reported for coiled carbon fibres grown in the gas phase. A unique aspect of these double helices when they are composed of carbon nanotubes is that they grow on top of a forest of aligned CNTs.
AB - Double helix microstructures consisting of two parallel strands, each composed of hundreds of multiwalled carbon nanotubes (MWCNTs) are synthesised by chemical vapour deposition (CVD) of ferrocene/toluene vapours on thermochemically treated metal substrates, such as steel, Cu, Al and W. The thermochemical treatment produces a thin and brittle layer of SiO x. During the CVD process, carbon nanotubes (CNT) grow adhered to this layer, and as growth progresses, small SiO x microparticles detach from the substrate, directing the helical development of the growing MWCNTs double strands. This growth model for the helical microstructures is compared in the manuscript with models previously reported for coiled carbon fibres grown in the gas phase. A unique aspect of these double helices when they are composed of carbon nanotubes is that they grow on top of a forest of aligned CNTs.
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U2 - 10.1016/j.carbon.2012.03.042
DO - 10.1016/j.carbon.2012.03.042
M3 - Article
AN - SCOPUS:84861640470
SN - 0008-6223
VL - 50
SP - 3688
EP - 3693
JO - Carbon
JF - Carbon
IS - 10
ER -