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Carbon nanotube assisted synthesis of CeO2 nanotubes |
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| Authors: | Dengsong Zhang Hongxia Fu Jianhui Fang |
| Institution: | a Department of Chemistry, Shanghai University, Shanghai 200444, China b School of Material Science and Engineering, Shanghai University, Shanghai 200072, China c Center of Analysis and Test, Shanghai University, Shanghai 200444, China |
| Abstract: | CeO2 nanotubes have been synthesized facilely using carbon nanotubes (CNTs) as templates by a liquid phase deposition method. The properties of the CeO2 nanotubes were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectrum (XPS) as well as thermogravimetry and differential thermal analysis (TG-DTA). The obtained CeO2 nanotubes with a polycrystalline face-centered cubic phase have a uniform diameter ranging from 40 to 50 nm. The CeO2 nanotubes are composed of many tiny interconnected nanocrystallites of about 10 nm in size. The pretreatment of CNTs and calcination temperature were confirmed to be the crucial factors determining the formation of CeO2 nanotubes. A possible formation mechanism has been suggested to explain the formation of CeO2 nanotubes. |
| Keywords: | CeO2 nanotubes Carbon nanotubes Template Liquid phase deposition |
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