Microwave assisted hydrothermal synthesis of engineered cerium oxide nanopowders

被引：86

作者：

Mahmoud, Waleed E. ^{[1
,2
]}

Faidah, A. ^{[1
]}

机构：

[1] King Abdulaziz Univ, Fac Sci, Dept Phys, Jeddah, Saudi Arabia

[2] Suez Canal Univ, Fac Sci, Dept Phys, Ismailia, Egypt

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2012年 / 32卷 / 13期

关键词：

Calcination; Microwave processing; Electron microscopy; CeO2; Sintering; GRAIN-GROWTH; POWDERS;

D O I：

10.1016/j.jeurceramsoc.2012.05.003

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cerium oxide nanopowders have been prepared via microwave assisted hydrothermal technique in the presence of different amounts of poly vinyl pyrrolidone (PVP). The prepared nanopowders were characterized using XRD, TEM and SAED. The results showed that the particle size of the ceria nanopowders was decreased with the increase of PVP amount. The prepared ceria has nanocrystalline cubic fluorite structure with high purity. The influence of PVP content on the densification behavior of CeO2 was investigated by means of dilatometer and scanning electron microscopy (SEM). It was found that the increase of PVP amount reduced sintering temperature. The cold-pressed powders can be sintered to full density at temperatures starting from 1070 degrees C in just 10 min. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：3537 / 3541

页数：5

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