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Synthesis and characterization of CeO2 nano-rods |
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| Authors: | Yong Chen Tianmo Liu Chunlin Chen Weiwei Guo Rong Sun Shuhui Lv Mitsuhiro Saito Susumu Tsukimoto Zhongchang Wang |
| Affiliation: | 1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China;2. WPI Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Japan;3. Institute of Engineering Innovation, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan |
| Abstract: | We report a synthesis of two types of CeO2 nano-rods via the facile and efficient hydrothermal process free from any surfactant and template. The synthesized nano-rods are chemically identified as CeO2 with the standard fluorite structure but their morphologies are different. The nano-rods prepared with cerium nitrate hexahydrate and sodium phosphate are thicker and shorter with diameter of ∼30 nm and length of ∼100 nm, and those prepared with cerium acetate hydrate and dibasic sodium phosphate are thinner and longer with ∼10 nm in diameter and ∼400 nm in length. Microstructural analyses reveal that the two species of nano-rods have low-energy {111} surfaces and grow along the 〈112〉 direction. As a consequence of their morphologies, the two types of synthesized nano-rods exhibit excellent UV-absorption ability in comparison to the irregular CeO2 nanoparticles. |
| Keywords: | B Microstructure D CeO2 Hydrothermal process Nano-rods UV absorption |
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