Morphology-Controllable Synthesis of CeO2on a Pt Electrode
1 State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, China
2 School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
3 School of Material Science and Engineering, Chongqing University, Chongqing, 400044, China
4 The State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou, 510275, China
Nanoscale Research Letters 2008, 3:431-434 doi:10.1007/s11671-008-9177-6Published: 30 September 2008
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.