Abstract
Nanoscale cerium dioxides with shape of nanoparticles, nanorods, and nanotubes were electrochemically synthesized. The morphology of CeO2was modulated by changing electrode potential and potential direction. CeO2nanorods and CeO2nanotubes were synthesized via the potentiostatic and cyclic voltammeteric methods, respectively. The morphology and structure of the obtained CeO2were characterized by field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD). A possible formation mechanism has been suggested to illuminate the relationship between the preparation condition and the morphology of CeO2.
Highlights
The one-dimension (1D) nanostructure has attracted much attention since the discovery of carbon nanotubes (CNTs) in 1952 [1] and has offered great potential for applications in the electric devices, sensors, and others uses [2]
We report for the first time one-step synthesis of CeO2 nanoparticles, nanorods, and nanotubes via an electrochemically synthesized route
The morphologies of CeO2 sized in nanoscale from nanoparticles, nanorods, and to nanowires can be fabricated by changing the potential direction and time of anodic oxidation
Summary
The one-dimension (1D) nanostructure has attracted much attention since the discovery of carbon nanotubes (CNTs) in 1952 [1] and has offered great potential for applications in the electric devices, sensors, and others uses [2]. Stimulated by promising applications and the fantastic properties, much attention has been directed to the controlled synthesis of CeO2 nanostructured materials. We report for the first time one-step synthesis of CeO2 nanoparticles, nanorods, and nanotubes via an electrochemically synthesized route.
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