TY - JOUR
T1 - Synthesis of carbon-encapsulated nanowires using polycyclic aromatic hydrocarbon precursors
AU - Dai, J. Y.
AU - Lauerhaas, J. M.
AU - Setlur, A. A.
AU - Chang, R. P.H.
N1 - Funding Information:
This work is supportedb y the NSF under the grantD MR 93-20520T. he use of centrafl acilitieso f the MaterialsR esearchC enter,w hichis supportebdy the NSF undert heg rantD MR 91-20521i,s appreciated.
PY - 1996/8/23
Y1 - 1996/8/23
N2 - A method using polycyclic aromatic hydrocarbon (PAH) precursors for synthesizing carbon nanotubes filled with pure copper or germanium is reported. A model is proposed where the interaction of small copper or germanium clusters with PAH molecules is shown to form carbon-encapsulated nanowires. The validity of this model is demonstrated by showing that filled nanotubes are formed in a hydrogen arc which produces PAH molecules when graphite electrodes are used. Alternatively, we have also used pyrene (C16H10), a PAH molecule, to grow encapsulated nanowires directly. No filled nanotubes are found in a helium arc which does not generate PAHs.
AB - A method using polycyclic aromatic hydrocarbon (PAH) precursors for synthesizing carbon nanotubes filled with pure copper or germanium is reported. A model is proposed where the interaction of small copper or germanium clusters with PAH molecules is shown to form carbon-encapsulated nanowires. The validity of this model is demonstrated by showing that filled nanotubes are formed in a hydrogen arc which produces PAH molecules when graphite electrodes are used. Alternatively, we have also used pyrene (C16H10), a PAH molecule, to grow encapsulated nanowires directly. No filled nanotubes are found in a helium arc which does not generate PAHs.
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U2 - 10.1016/0009-2614(96)00709-9
DO - 10.1016/0009-2614(96)00709-9
M3 - Article
AN - SCOPUS:0030598729
VL - 258
SP - 547
EP - 553
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 5-6
ER -