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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

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

Revista

Título: Journal of Nanoscience and Nanotechnology

Vol. 9 Nº 6

Páginas: 6084-6088

ISSN: 1533-4880

Editora: American Scientific Publishers

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 15 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5