Facile fabrication of magnetic single-crystalline ceria nanobelts

The magnetic single-crystalline CeO₂ nanobelts were successfully prepared on Cu substrates by electrochemical deposition. The surface morphologies of CeO₂ can be well controlled by changing the additives and current densities of electrodeposition. Experimental results suggest that NH₄NO₃ plays a key role in the formation of CeO₂ nanobelts. The magnetic properties are clearly observed for the obtained CeO₂ nanobelts. The magnetizations of CeO₂ nanobelts increase with temperature decreasing. It is believed that this electrochemical synthetic route can be used to prepare other rare earth oxide nanobelts.