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.
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