11 Result(s)

Article

Structure, transport and field-emission properties of compound nanotubes: CN_x vs. BNC_x (x<0.1)

Transport and field-emission properties of as-synthesized CN_x and BNC_x (x<0.1) multi-walled nanotubes were compared in detail. Individual ropes made of these nanotubes and macrofilms of those were tested. Before ...

D. Golberg, P.S. Dorozhkin, Y. Bando, Z.-C. Dong, C.C. Tang, Y. Uemura… in Applied Physics A (2003)

Article

Mössbauer Study of Iron-Containing Carbon Nanotubes

⁵⁷Fe transmission Mössbauer at temperatures between 18 and 298 K and magnetic measurements have been used to characterize Fe-filled carbon nanotubes which were prepared by pyrolisis of Ferrocene + C₆₀ at atmosph...

J. F. Marco, J. R. Gancedo, A. Hernando, P. Crespo, C. Prados… in Hyperfine Interactions (2002)

Article

N-do** and coalescence of carbon nanotubes: synthesis and electronic properties

Self-assembly pyrolytic routes to large arrays (<2.5 cm²) of aligned CN_x nanotubes (15–80 nm OD and <100 μm in length) are presented. The method involves the thermolysis of ferrocene/melamine mixtures (5:95) at 9...

M. Terrones, P.M. Ajayan, F. Banhart, X. Blase, D.L. Carroll… in Applied Physics A (2002)

Article

Generation of hollow crystalline tungsten oxide fibres

Hollow fibres of crystalline W₁₈O₄₉, arranged in a pine-tree-like structure, were generated by heating WS₂ powder in oxygen. SEM, TEM, X-ray and electron diffraction studies show that the individual fibres are co...

W.B. Hu, Y.Q. Zhu, W.K. Hsu, B.H. Chang, M. Terrones, N. Grobert… in Applied Physics A (2000)

Article

A novel route to aligned nanotubes and nanofibres using laser-patterned catalytic substrates

We describe the generation of aligned carbon nanotube bundles and films by pyrolysis of solid organic precursors (for example 2-amino-4,6-dichloro-s-triazine, s-triaminotriazine) at 950–1050 °C over laser-pattern...

N. Grobert, M. Terrones, S. Trasobares, K. Kordatos, H. Terrones… in Applied Physics A (2000)

Article

Advances in the Creation of Filled Nanotubes and Novel Nanowires

M. Terrones, N. Grobert, W. K. Hsu, Y. Q. Zhu, W. B. Hu, H. Terrones… in MRS Bulletin (1999)

Article

Solid-phase production of carbon nanotubes

C₃) are heated to 1000–1100 °C for 2–4 hr in an argon flow. Carbon nanotubes are formed when metal powders, e.g. Fe, Co, Y and Ni, are also present.

W.K. Hsu, Y.Q. Zhu, S. Trasobares, H. Terrones, M. Terrones… in Applied Physics A (1999)

Article

Thermolysis of C60 thin films yields Ni-filled tapered nanotubes

and Ni deposited on a silica plate at 950 °C. High-resolution transmission electron microscopy (HRTEM) studies reveal that these tapered structures are almost completely filled with Ni and are closed at both ...

N. Grobert, M. Terrones, A.J. Osborne, H. Terrones, W.K. Hsu… in Applied Physics A (1998)

Article

Novel nanotubes and encapsulated nanowires

mixtures. Prolonged electron irradiation of these nanowires leads to axial growth and to dynamic transformations. These observations suggest ways in which materials may be modified by microencapsulation and i...

M. Terrones, W.K. Hsu, A. Schilder, H. Terrones, N. Grobert, J.P. Hare… in Applied Physics A (1998)

Article

Controlled production of aligned-nanotube bundles

Carbon nanotubes^1,2 might be usefully employed in nanometre-scale engineering and electronics. Electrical conductivity measurements on the bulk material^3,4, on individual multi-walled^5,6 and single-walled⁷ nanotu...

M. Terrones, N. Grobert, J. Olivares, J. P. Zhang, H. Terrones, K. Kordatos… in Nature (1997)