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Citation: ZHU Wen-Qing, XU Lei, MA Jin, REN Jian-Mei, CHEN Ya-Shao. Size Controlled Synthesis of CeO₂ Nanoparticles by a Microemulsion Method[J]. Acta Physico-Chimica Sinica, ;2010, 26(05): 1284-1290. doi: 10.3866/PKU.WHXB20100333 shu

Size Controlled Synthesis of CeO₂ Nanoparticles by a Microemulsion Method

1.
Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, P. R. China; College of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, P. R. China

Received Date: 23 October 2009
Available Online: 2 February 2010

Precursors of CeO2 were synthesized in a reverse microemulsion composed of cetyltrimethylammonium bromide (CTAB), 1-butanol, 1-octane, Ce(NO3)3 brine (ammonia). The optimum calcination temperature (550 ℃) was derived from thermogravimetry (TG) analysis and X-ray powder diffraction (XRD). The CeO2 nanoparticles were then prepared by calcining the precursors at 550 ℃. The structures, morphologies, size, and UV absorption properties of the CeO2 nanoparticles were characterized by XRD, transmission electron microscopy (TEM), and UV-Vis spectroscopy. Cubic crystalline CeO2 nanoparticles of 5 -18 nm in size and with od monodispersity were obtained using this method. The influences of the mass ratio of 1-octane to 1-butanol and the concentration of Ce(NO3)3 on the size of the CeO2 nanoparticles were studied. Results showed that CeO2 nanoparticle size was dependent on the mass ratio of 1-octane to 1-butanol and the concentration of Ce(NO3)3. The size of the CeO2 nanoparticles decreased as the mass ratio of 1-octane to 1-butanol as well as the concentration of Ce(NO3)3 increased. In addition, we studied the UV absorption properties of the CeO2 nanoparticles by UV-Vis spectroscopy.
- Microemulsion,
- CeO2 nanoparticle,
- Controlled size,
- Synthesis,
- UV absorption property
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沈阳化工大学材料科学与工程学院沈阳 110142

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Size Controlled Synthesis of CeO2 Nanoparticles by a Microemulsion Method

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通讯作者: 陈斌, bchen63@163.com

Size Controlled Synthesis of CeO₂ Nanoparticles by a Microemulsion Method