Easy synthesis and characterization of single-crystalline hexagonal prism-shaped hematite α-Fe2O3 in aqueous media

被引：54

作者：

Chaudhari, Nitin Kaduba ^{[1
]}

Kim, Hyoung Chan ^{[2
]}

Son, Derac ^{[3
]}

Yu, Jong-Sung ^{[1
]}

机构：

[1] Korea Univ, Dept Adv Mat Chem, BK Res Team 21, Jochiwon 339700, Chungnam, South Korea

[2] Natl Fus Res Inst, Taejon 305333, South Korea

[3] Hannam Univ, Dept Phys, Taejon 306791, South Korea

来源：

CRYSTENGCOMM | 2009年 / 11卷 / 11期

关键词：

HYDROTHERMAL SYNTHESIS; MAGNETIC-PROPERTIES; NANOPARTICLES; NANOCRYSTALS; ROUTE; FE2O3; WATER; OXIDE; NANOWIRES; ZNO;

D O I：

10.1039/b910569g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple, mild and environmentally friendly one-pot aqueous synthesis route using urea devoid of surfactant and chelating agents is demonstrated for the first time to fabricate high yield crystalline uniform hexagonal prism-shaped weakly magnetic alpha-Fe2O3 nanocrystals. As synthesized alpha-Fe2O3 nanocrystals show ferromagnetic behavior with coercivity values of 0.8 and 0.2 T at 5 and 300 K, respectively. The urea and reaction temperature plays a crucial role, regulating the morphology and the size.

引用

页码：2264 / 2267

页数：4

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