Formation of maghemite nanoparticles in bismuth telluride materials containing iron

被引：0

作者：

Catchings, R. M., III ^{[1
]}

Thorpe, A. N. ^{[1
]}

Grant, J. R. ^{[1
]}

Douglas, R. ^{[1
]}

Viragh, C. ^{[2
]}

Adel-Hadadi, M. A. ^{[3
]}

Gaskell, K. ^{[4
]}

Barkatt, A. ^{[3
]}

机构：

[1] Howard Univ, Dept Phys & Astron, Washington, DC 20059 USA

[2] Catholic Univ Amer, Vitreous State Lab, Washington, DC 20064 USA

[3] Catholic Univ Amer, Dept Chem, Washington, DC 20064 USA

[4] Univ Maryland, Dept Chem, College Pk, MD 20742 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2010年 / 25卷 / 10期

关键词：

TRANSFORMATION; FERRIHYDRITE; HEMATITE; FE3O4; MAGNETITE; BI2TE3;

D O I：

10.1557/JMR.2010.0259

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bismuth telluride (Bi2Te3) systems containing 2%, 4%, and 8% of iron were prepared using a low temperature wet chemical method. Iron oxide nanoparticles were formed when the samples were heated in hydrogen at 250 degrees C for at least six hours. The samples were characterized by x-ray diffraction, magnetization, magnetic susceptibility, x-ray photoelectron spectroscopy, Mossbauer spectroscopy, and wet chemical analysis measurements. The nanoparticles of iron oxide were identified as gamma-Fe2O3 with a particle size of similar to 5 nm.

引用

页码：2042 / 2046

页数：5

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