6533b7defe1ef96bd1275d71

RESEARCH PRODUCT

Template electrosyntesis of CeO2 nanotubes

Carmelo SunseriRosalinda InguantaSalvatore Piazza

subject

NanotubeMaterials scienceMechanical EngineeringBioengineeringNanotechnologyGeneral ChemistryElectrolyteCerium compoundsElectrocatalysisElectrodepositionGrain size and shapePolycrystalline materialsSynthesis (chemical)ElectrosynthesisElectrochemistrysymbols.namesakeMembraneSettore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringMechanics of MaterialssymbolsGeneral Materials ScienceCrystalliteElectrical and Electronic EngineeringRaman spectroscopyDeposition (law)

description

Nanotube arrays of CeO2 were produced in a single step by potentiostatic electrochemical deposition from a non-aqueous electrolyte, using anodic alumina membrane templates. The CeO2 nanotubes showed a polycrystalline structure, and they were assembled in the membrane nanochannels. The nanotubes had somewhat uniform diameters, with an average external value of about 210 nm, and a maximum length of about 60 µm; the latter parameter was controlled by the electrodeposition time. Each single nanotube was found to consist of crystalline grains having a size of about 3 nm. Raman analysis shows that these CeO2 nanotubes are suitable for catalytic applications.

10.1088/0957-4484/18/48/485605http://hdl.handle.net/10447/20621