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Growth of La2CuO4 nanofibers under a mild condition by using single-walled carbon nanotubes as templates


Gao, L and Wang, X and Chua, HT and Kawi, S, Growth of La2CuO4 nanofibers under a mild condition by using single-walled carbon nanotubes as templates, Journal of Solid State Chemistry, 179, (7) pp. 2036-2040. ISSN 0022-4596 (2006) [Refereed Article]

DOI: doi:10.1016/j.jssc.2006.04.003


La2CuO4 nanofibers (ca. 30 nm in diameter and 3 mu m in length) have been grown in situ by using single walled carbon nanotubes (SWNTs; ca. 2 nm in inner diameter; made via cracking CH4 over the catalyst Of Mg0.8Mo0.05Ni0.10Co0.05Ox at 800 degrees C) as templates under mild hydrothermal conditions and a temperature around 60 degrees C. During synthesis, the surfactant poly(ethylene glycol)-block-poly(propylene glycol) block-poly(ethylene glycol) and H2O2 were added to disperse SWNTs and oxidize the reactants, respectively. The structure of La2CuO4 nanofibers was confirmed by powder X-ray diffraction (XRD) and their morphologies were observed with field emission scanning electron microscope (FESEM) at the hydrothermal synthesis lasting for 5, 20 and 40 h, respectively. The La2CuO4 crystals grew from needle-like (5 h) through stick-like (20 h) and finally to plate-like (40 h) fibers. Twenty hours is an optimum reaction time to obtain regular crystal fibers. The La2CuO4 nanofibers are probably cubic rather than round and may capsulate SWNTs. (C) 2006 Elsevier Inc. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Other engineering
Research Field:Other engineering not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Wang, X (Professor Xiaolin Wang)
ID Code:81219
Year Published:2006
Web of Science® Times Cited:14
Deposited By:Engineering
Deposited On:2012-11-27
Last Modified:2012-11-27

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