Characterization of CeO2 fine particles prepared by the homogeneous precipitation method with a mixed solution of ethylene glycol and polyethylene glycol
Characterization of CeO2 fine particles prepared by the homogeneous precipitation method with a mixed solution of ethylene glycol and polyethylene glycol
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DOI：
10.1557/jmr.2004.0142
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发表时间：
2004-04-01
影响因子：
2.7
通讯作者：
Kakegawa, K
中科院分区：
文献类型：
--
作者：
Uekawa, N;Ueta, M;Kakegawa, K
通过将硝酸铈水合物[Ce(NO3)3·6H(2)O]的聚乙二醇(PEG)溶液在383 K下加热3小时获得氧化铈(CeO2)纳米颗粒。采用分子量为20000的PEG制备时，得到粒径约为102 nm的单分散CeO2。当使用PEG20,000和乙二醇(EG)的混合物制备硝酸铈水合物的PEG溶液时，随着溶液中EG含量的增加，平均粒径从102 nm增加到660 nm。所得CeO2颗粒的孔结构还取决于EG和PEG20,000之间的重量比。
Cerium oxide (CeO2) nanoparticles were obtained by heating a polyethylene glycol (PEG) solution of cerium nitrate hydrate [Ce(NO3)3 6H(2)O] at 383 K for 3 h. When the PEG, whose molecular weight was 20,000, was used for the preparation, the monodispersed CeO2, whose particle size was about 102 nm, was obtained. When the mixture of PEG20,000 and ethylene glycol (EG) was used to prepare the PEG solution of cerium nitrate hydrate, the average particle size increased from 102 nm to 660 nm with an increase in the EG content of the solution. The pore structure in the obtained CeO2 particles also depended on the weight ratio between EG and PEG20,000.