Synthesis of CeO2 nanorods via ultrasonication assisted by polyethylene glycol

被引：254

作者：

Zhang, Dengsong ^{[1
]}

Fu, Hongxia

Shi, Liyi

Pan, Chengsi

Li, Qiang

Chu, Yuliang

Yu, Weijun

机构：

[1] Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China

[3] Shanghai Univ, Ctr Anal & Test, Shanghai 200444, Peoples R China

来源：

INORGANIC CHEMISTRY | 2007年 / 46卷 / 07期

关键词：

D O I：

10.1021/ic061697d

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Polycrystalline CeO2 nanorods 5-10 nm in diameter and 50-150 nm in length were synthesized via ultrasonication using polyethylene glycol (PEG) as a structure-directing agent at room temperature. The properties of the CeO2 nanorods were characterized by TEM, EDS, XRD, XPS, FT-IR, TG, BET, and UV-vis spectroscopy. Various reaction parameters, such as the content of PEG, the molecular weight of PEG, the concentration of KOH, the pH value, and the sonication time, were investigated by a series of control experiments. The content of PEG, the molecular weight of PEG, and the sonication time were confirmed to be the crucial factors determining the formation of one-dimensional CeO2 nanorods. A possible ultrasonic formation mechanism has been suggested to explain the formation of CeO2 nanorods.

引用

页码：2446 / 2451

页数：6

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