Morphology-selective synthesis, method of gear-like CeO2 microstructures and their optical properties

被引：35

作者：

Zhang, Cheng ^{[1
]}

Meng, Fanming ^{[1
,2
]}

Wang, Leini ^{[1
]}

Zhang, Miao ^{[1
]}

Ding, Zongling ^{[1
]}

机构：

[1] Anhui Univ, Sch Phys & Mat Sci, Minist Educ, Key Lab Optoelect Informat Acquisit & Manipulat, Hefei 230601, Peoples R China

[2] Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 130卷

关键词：

Optical materials; CeO2; microstructures; Hydrothermal method; X-ray techniques; ROOM-TEMPERATURE FERROMAGNETISM; HYDROTHERMAL SYNTHESIS; NANOPARTICLES; ROUTE;

D O I：

10.1016/j.matlet.2014.05.081

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gear-like CeO2 microstructures have been successfully synthesized by a CTAB (cetyltrimethyl ammonium bromide)-assisted hydrothermal method using Ce(NO3)(3)center dot 6H(2)O as the cerium source and ammonium hydrogen carbonate as the precipitator. X-ray diffraction (XRD) inferred that the synthesized CeO2 microstructures exhibited a fluorite cubic structure. A scanning electron microscope (SEM) revealed that the CeO2 microstructures have a gear-like microstructure. X-ray photoelectron spectroscopy (XPS) and the Raman spectroscopy reflected the existence of the oxygen vacancies and Ce3+ ions in the bowknot-like CeO2 microstructures. The synthesized CeO2 shows excellent room temperature optical properties, which is likely associated with Ce3+ ions and oxygen vacancies in the gear-like CeO2 samples. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：202 / 205

页数：4

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