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MONICA SANTAMARIA

From ceria nanotubes to nanowires through electrogeneration of base

  • Autori: Bocchetta, P.; Santamaria, M.; DI QUARTO, F.
  • Anno di pubblicazione: 2009
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: Ceria, Nanowires, Nanotubes,Template, Electrogeneration of base
  • OA Link: http://hdl.handle.net/10447/57721

Abstract

The preparation of Ce(OH)3/CeO2 nanostructures (NSs) through electrogeneration of base into anodic alumina membranes was studied. The effects of solvent (alcohol and/or water), Ce3? partner anion nature (chloride or nitrate) and concentration, applied potential or current density in driving the morphology toward nanowires (NWs) and/or nanotubes (NTs) was described. The structural analysis performed by X-Ray Diffraction and Raman Spectroscopy allowed to evidence that the presence of Ce(IV) into the nanostructures strongly depends on the oxygen content in the growing environment.