Rapid Synthesis of Ordered Manganite Nanotubes by Microwave Irradiation in Alumina Templates

• Type: Article in International Scientific Journal
• Date: 2009

Authors

sousa, c. t. (Author) Other; lopes, a. m. l. (Author) Other; proenca, m. p. (Author) Other; leitao, d. c. (Author) Other; correia, j. g. (Author) Other; araujo, j. p. (Author) FCUP

Journal

Title: Journal of Nanoscience and Nanotechnology

Vol. 9 No. 6

Pages: 6084-6088

ISSN: 1533-4880

Publisher: American Scientific Publishers

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 15 Citations

Other information

Authenticus ID: P-003-FFH

DOI: 10.1166/jnn.2009.1572

Abstract (EN): Highly ordered La(2/3)Ca(1/3)MnO(3) 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 T(C) 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5