TY - JOUR
T1 - Graphitic cones in carbon nanofibres
AU - Terrones, H.
AU - Muñoz-Navia, M.
AU - Terrones, M.
AU - Hayashi, T.
AU - Kim, Y. A.
AU - Endo, M.
AU - Muñoz-Navia, M.
AU - Dorantes-Dávila, J.
AU - Terrones, M.
AU - Grobert, N.
AU - Kamalakaran, R.
AU - Escudero, R.
AU - Dresselhaus, M. S.
N1 - Funding Information:
The authors are grateful to Ph. Redlich, M. Rühle and K. Labitzke for stimulating discussions and technical assistance. HT acknowledges the support of the Japanese Society for the Promotion of Science (JSPS grant No. S-00247) and the hospitality of Shinsu University, Japan, where he has been a visiting scientist. MT and HT are grateful to CONACYT-México grant W-8001-millenium initiative and grants 32085-E, 36365, MMN and JDD acknowledge IMP-Mexico grant FIES-98-101-I, CONACYT grant 37589-U and MMN thanks CONACyT-México for the PhD grant.
PY - 2002
Y1 - 2002
N2 - High yields of graphitic conical nanofibres (5-70nm OD; <5μm in length) are produced by pyrolysing various palladium precursors under an Ar atmosphere at 850-1000°C. The fibres exhibit diamond-shaped Pd particles at their tips, which are responsible for the carbon aggregation and its subsequent diffusion. This carbon replication phenomenon on the Pd particles results in the formation of stacked graphene cones, which grow aligned along a common axis, thus creating graphitic nanofibres. The cones within the fibres can be either open (lamp-shade type) or closed. The material has been analysed using sophisticated electron microscopy (HRTEM, SEM, ED) and spectroscopic techniques (Raman, EELS, EDX). Due to the large number of open edges, we envisage that these novel nanofibres may find important applications in the fabrication of field emitters, gas storage devices and composites.
AB - High yields of graphitic conical nanofibres (5-70nm OD; <5μm in length) are produced by pyrolysing various palladium precursors under an Ar atmosphere at 850-1000°C. The fibres exhibit diamond-shaped Pd particles at their tips, which are responsible for the carbon aggregation and its subsequent diffusion. This carbon replication phenomenon on the Pd particles results in the formation of stacked graphene cones, which grow aligned along a common axis, thus creating graphitic nanofibres. The cones within the fibres can be either open (lamp-shade type) or closed. The material has been analysed using sophisticated electron microscopy (HRTEM, SEM, ED) and spectroscopic techniques (Raman, EELS, EDX). Due to the large number of open edges, we envisage that these novel nanofibres may find important applications in the fabrication of field emitters, gas storage devices and composites.
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U2 - 10.1080/10587250290113547
DO - 10.1080/10587250290113547
M3 - Conference article
AN - SCOPUS:19944409296
SN - 1058-725X
VL - 387
SP - [263]/39-[274]/50
JO - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
IS - PART 2
T2 - Proceedings of the First International Symposium on Nanocarbons
Y2 - 14 November 2001 through 16 November 2001
ER -