Continuous synthesis of carbon-encapsulated magnetic nanoparticles with a minimum production of amorphous carbon

被引：68

作者：

Bystrzejewski, M. ^{[1
]}

Karoly, Z. ^{[2
]}

Szepvolgyi, J. ^{[2
,3
]}

Kaszuwara, W. ^{[4
]}

Huczko, A. ^{[1
]}

Lange, H. ^{[1
]}

机构：

[1] Warsaw Univ, Dept Chem, PL-02093 Warsaw, Poland

[2] Hungarian Acad Sci, Chem Res Ctr, Inst Mat & Environm Chem, H-1025 Budapest, Hungary

[3] Univ Pannonia, Res Inst Chem & Proc Engn, H-2800 Veszprem, Hungary

[4] Warsaw Univ Technol, PL-02507 Warsaw, Poland

来源：

CARBON | 2009年 / 47卷 / 08期

关键词：

NANOCAPSULES; NANOTUBES; PURIFICATION; IRON; PLASMA; GRAPHITIZATION; HYDROGEN; OXYGEN; ROUTE;

D O I：

10.1016/j.carbon.2009.03.054

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The continuous synthesis of carbon-encapsulated magnetic nanoparticles is described using an inductively coupled radio frequency thermal plasma torch. The synthesis uses the simultaneous vaporization of iron powder and a liquid carbon source in the plasma jet. it was found that the process parameters could be adjusted to minimize the amorphous carbon content in the product. It could be achieved using either aliphatic alcohols (processed in Ar plasma) or hydrocarbons (processed in Ar-O-2 plasma). In such circumstances the oxygen etches any amorphous carbon particles produced. Complete reduction of amorphous carbon was achieved when ethanol was used as a carbon feedstock. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2040 / 2048

页数：9

共 39 条

[21] Purification and separation of carbon nanocapsules as a magnetic carrier for drug delivery systems [J].