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Nanotubes made of metal oxides have attracted attention in the last decade due to their physical and chemical properties different from the parent material. Consisting of cerium materials show optical characteristics, electronic and magnetic interesting, mainly due to the presence of electrons in the f layer. In literature, the methods most commonly used for obtaining cerium nanotubes (CeNTs) using template as structure-directing.This study aimed to obtain cerium oxide nanotubes (CeNTs) by alkaline hydrothermal synthesis without the use of templates. The material obtained was characterized by TG-DSC, XRD, SEM and N2 adsorption/desorption. The results showed obtaining a nanotubular materials initially consisting of Ce(OH)3 displayed by the TG-DSC curves. The XRD patterns showed an increase in structural organization of the calcining nanotube after Ce(OH)3 to obtain CeO2 nanotubes. The nanotubular morphology was confirmed by SEM images showing multilayer materials with an average external diameter in the range 30-90 μm. The isotherms adsorption/desorption of N2 obtained for CeNTs hysteresis loop indicated type C typical nanotubular morphology. The CeNTs obtained have a specific surface area of 60.87 m2 / g.

Obtenção de nanotubos de óxido de cério através de síntese hidrotérmica alcalina livre de templates