Large scale continuous synthesis of carbon-encapsulated magnetic nanoparticles

被引：44

作者：

Bystrzejewski, M. ^{[1
]}

Huczko, A.

Lange, H.

Baranowski, P.

Cota-Sanchez, G.

Soucy, G.

Szczytko, J.

Twardowski, A.

机构：

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

[2] Univ Sherbrooke, Sherbrooke, PQ J1K 2R1, Canada

[3] Atom Energy Canada Ltd, Whiteshell Labs, Pinawa, MB R0E 1L0, Canada

[4] Univ Warsaw, Dept Phys, PL-00681 Warsaw, Poland

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 14期

关键词：

D O I：

10.1088/0957-4484/18/14/145608

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fe, Fe3C and NdC2 nanoparticles, encapsulated within carbon cages, were continuously produced during the induction thermal plasma processing of Fe14Nd2B, in the presence of methane or acetylene. The product morphology was studied by means of SEM. Further structural details were obtained from TEM, HRTEM, Raman spectroscopy and x-ray powder diffraction studies. The so-produced nanostructures have core-shell structure, with inner cavity diameters varying between 10 and 30 nm. The carbon coatings were composed of between 5 and 25 graphene layers. The carbon cages were built from sp(2) carbon atoms, which protected the encapsulated nanoparticles from both oxidation and agglomeration. The plasma generated products were ferromagnetic, with maximum values of coercivity field of 600 G s, and saturation magnetization values of up to 40 emu g(-1).

引用

页数：9

共 33 条

[1] Large-scale production of carbon-coated copper nanoparticles for sensor applications [J].