A novel method to prepare Cr2O3 nanoparticles

被引：54

作者：

Pei, Zhenzhao ^{[1
,2
]}

Zhang, Yi ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Process Engn, Lab Green Process Engn, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 03期

基金：

中国国家自然科学基金;

关键词：

hydrothermal synthesis; Cr2O3; characterization methods; microstructure;

D O I：

10.1016/j.matlet.2007.05.073

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By the reaction system of CrO3 and HCHO in aqueous solution, Cr2O3 nanoparticles were first prepared via hydrothermal synthesis. The process can be easily scaled up. The reaction time was only I h and the reaction temperature was 170 degrees C. The products were loosely agglomerated Cr2O3 particles of 50-70 nm in average particle size calculated from the Scherrer's formula, whose microstructure and that of the precursor were investigated by SEM. And IR, TG and BET were other characterization methods to study the process. The findings showed that the higher calcination temperature and the higher total concentration were factors to result in the larger average particle size. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：504 / 506

页数：3

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