RT journal article
T1 The Role of Gold-Alumina Template in the Electrochemical Deposition of CeO2 Nanotubes
A1 González Souto, Lorena
A1 González Rovira, Leandro
A1 Botana Pedemonte, Francisco Javier
A1 Calvino Gámez, José Juan
A1 Cauqui López, Miguel Ángel
A1 Hernández Garrido, Juan Carlos
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
AB Electrochemical synthesis employing porous membranes previously metalized with a gold layer as a template is an easy and widespread method to obtain 1D nanostructures. Nevertheless, experimental factors for tuning the morphology and structural details of such nanostructures are stillinvestigated. The influence of the amount of gold on morphology and structure of the 1D systems is studied for the first time. For this purpose, CeO2 nanotubes are synthesized via template-based  lectrodeposition inside the pores of gold-sputtered anodic aluminum oxide (AAO). X-ray diffraction and electron microscopy techniques, including 3D electron tomography, are applied for the characterization of the template and the nanostructures. On one hand, the results reveal how gold is deposited on top and inside the pores of the AAO as a thin layer or as particles. On the other hand, the 1D systems consist of nanotubes formed by randomly oriented fluorite-like nanocrystals (2–5 nm), which features a network of inner walls whose compactness directly relates to the thickness of the gold-sputtered layer. From the combined analysis of voltage–time curves recorded during electrodeposition and the 2D, 3D structural information, a growth mechanism is proposed, which may enlighten paths to tailor the morphology and properties of CeO2 1D nanostructures
PB Wiley-VCH GmbH
SN 1521-4117
YR 2019
FD 2019
LK http://hdl.handle.net/10498/30391
UL http://hdl.handle.net/10498/30391
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026