RT journal article T1 Formation and characterization of nanotubes of La(OH)3 obtained using porous alumina membranes A1 González Rovira, Leandro A1 Sánchez Amaya, José María A1 López Haro, Miguel A1 Hungría Hernández, Ana Belén A1 Boukha, Z. A1 Bernal Márquez, Serafín A1 Botana Pedemonte, Francisco Javier A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica AB An electrodeposition process is used to synthesize nanotubes of a lanthanum-containing phase, employing porous alumina membranes as templates. This method should lead to the formation of La(OH)3 nanowires, according to the previous results presented by Bocchetta et al (2007 Electrochem. Commun. 9 683–8), which can be decomposed to La2O3, as the latter shows more interest for different applications. The results obtained by means of different electron microscopy techniques indicate that this method leads to the formation of nanotubes of about 200 nm in diameter and 30–40 μm in length, instead of the nanowires proposed in the literature. Additionally, the chemical characterization demonstrates that the material synthesized is composed of lanthanum hydroxycarbonate. The presence of carbonates is found to be crucial in determining the conditions for the preparation of La2O3 from the nanotubes here obtained PB IOP PUBLISHING SN 0957-4484 YR 2008 FD 2008 LK http://hdl.handle.net/10498/30294 UL http://hdl.handle.net/10498/30294 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 07-nov-2026