Rapid Synthesis of Ordered Manganite Nanotubes by Microwave Irradiation in Alumina Templates
Authors: Sousa, C.T.; Lopes, A.M.L.; Proença, M.P.; Leitão, D.C.; Correia, J.G.; Araújo, J.P.
Source: Journal of Nanoscience and Nanotechnology, Volume 9, Number 10, October 2009 , pp. 6084-6088(5)
Publisher: American Scientific Publishers
Abstract:Highly ordered La2/3Ca1/3MnO3 nanotube arrays were successfully synthesized by a simple and rapid process, combining nanoporous alumina template-assisted synthesis with microwave irradiation. The method offers a quick hands-on route to produce manganite bulk sample and nanotube arrays at relative low-temperatures. We obtain thin wall nanotubes of uniform diameter of 80 nm. The growth mechanism of nanotubes is briefly discussed. Magnetic measurements indicate that the ferromagnetic transition temperature TC of the nanotubes is depleted with respect to its bulk counterpart possibly due to the geometric confinement imposed by the thin wall of the nanotubes.
Document Type: Research article
Publication date: 2009-10-01
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