Continuous synthesis of controlled size carbon-encapsulated iron nanoparticles

被引：26

作者：

Bystrzejewski, M. ^{[1
]}

Karoly, Z. ^{[2
]}

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

Huczko, A. ^{[1
]}

Lange, H. ^{[1
]}

机构：

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

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

[3] Univ Pannonia, Res Inst Chem & Proc Engn, H-8200 Veszprem, Hungary

来源：

MATERIALS RESEARCH BULLETIN | 2011年 / 46卷 / 12期

关键词：

Magnetic materials; Nanostructures; Plasma deposition; Electron microscopy; Raman spectroscopy; MAGNETIC NANOPARTICLES; COMBUSTION SYNTHESIS; RAMAN-SPECTROSCOPY; NI NANOPARTICLES; NANOCAPSULES; STABILITY; FE; FUNCTIONALIZATION; NANOMAGNETS; PLASMA;

D O I：

10.1016/j.materresbull.2011.08.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon-encapsulated iron nanoparticles were continuously and selectively synthesised in a thermal plasma jet from ethanol (carbon source) and Fe powders with different grain sizes. The grain size of the Fe powder influenced the size distribution of the as-produced carbon encapsulates. The products obtained from large Fe particles (50-78 mu m) were comprised of small encapsulates with diameters between 5 and 10 nm. Larger carbon encapsulates with a broad diameter distribution (10-100 nm) were synthesised from the finest Fe particles (18 mu m). It was also found that Fe particle size was the most crucial parameter for determining the encapsulation yield. The encapsulation yield was also influenced by the carbon to iron ratio and the thermal conductivity of the plasma gas. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2408 / 2417

页数：10

共 29 条

[21] Easy-separable magnetic nanoparticle-supported Pd catalysts: Kinetics, stability and catalyst re-use [J].