Filamentary iron nanostructures from laser-induced pyrolysis of iron pentacarbonyl and ethylene mixtures

被引：0

作者：

H. Hofmeister

F. Huisken

B. Kohn

R. Alexandrescu

S. Cojocaru

A. Crunteanu

I. Morjan

L. Diamandescu

机构：

[1] Max-Planck-Institut für Mikrostrukturphysik,

[2] Weinberg 2,undefined

[3] 06120 Halle,undefined

[4] Germany,undefined

[5] Max-Planck-Institut für Strömungsforschung,undefined

[6] Bunsenstr. 10,undefined

[7] 37073 Göttingen,undefined

[8] Germany,undefined

[9] National Institute for Lasers,undefined

[10] Plasma and Radiation Physics,undefined

[11] P.O. Box MG-36,undefined

[12] 76900 Bucharest,undefined

[13] Romania,undefined

[14] National Institute for Material Physics,undefined

[15] P.O. Box MG-7,undefined

[16] 76900 Bucharest,undefined

[17] Romania,undefined

来源：

Applied Physics A | 2001年 / 72卷

关键词：

PACS: 61.46.+w; 61.16.-d; 61.18.Fs; 81.15.Gh;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this work, we present results of the synthesis and characterization of iron and iron oxide nanoparticles aggregated in filamentary, spider-web-like structures. The particles were produced in a flow reactor by CO2 laser pyrolysis of gaseous mixtures of iron pentacarbonyl and ethylene. Low- and high-resolution electron microscopy reveals chain-like structures of particles, most of them being composed of an α-iron core and an iron oxide shell, identified as magnetite and, to a lesser extent, hematite. These results are in good agreement with a Mössbauer analysis carried out for the same samples. The role of the reaction temperature on the synthesis of filamentary iron nanostructures by infrared laser pyrolysis of Fe(CO)5/C2H4 mixtures is discussed.

引用

页码：7 / 11

页数：4