|Growth of tadpole-like carbon nanotubes from TiO2 nanoparticies|
|L. L. Zhang; C. Liu; B. L. Liu; W. J. Yu; P. X. Hou; H. M. Cheng
|Abstract||Tadpole-like carbon nanotubes (CNTs) were synthesized by chemical vapor deposition from ethanol using TiO2 nanoparticles (NPs) as catalyst. The CNTs have a cup-stacked structure are typically less than 500 nm in length, and have a non-uniform diameter with a big "head" and a smaller diameter "tail", inside which a catalyst NP is usually encapsulated. Transmission electron microscopy (TEM) characterisation reveals that the TiO2 catalyst NPs are oxygen-deficient, which is considered to be responsible for the gradually diminishing diameter of the CNTs. In situ TEM study further confirms that the effective catalytic species is solid oxygen-deficient titanium oxide. A tip growth mode combined with vapor-solid-solid mechanism is proposed for the growth of the CNTs. (C) 2012 Elsevier Ltd. All rights reserved.|
; liu, chang
; liu, bilu
; yu, wan-jing
; hou, peng-xiang
; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.
; liu, c (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china.
L. L. Zhang,C. Liu,B. L. Liu,et al. Growth of tadpole-like carbon nanotubes from TiO2 nanoparticies[J]. Carbon,2013,55:253-259.
L. L. Zhang,C. Liu,B. L. Liu,W. J. Yu,P. X. Hou,&H. M. Cheng.(2013).Growth of tadpole-like carbon nanotubes from TiO2 nanoparticies.Carbon,55,253-259.
L. L. Zhang,et al."Growth of tadpole-like carbon nanotubes from TiO2 nanoparticies".Carbon 55(2013):253-259.
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