Structure and magnetic properties of nanoparticles encapsulated in carbon shells

被引：7
|
作者：
Leonowicz, M. [1 ]
Wozniak, M. [1 ]
Shulga, Y. M. [2 ]
Muradyan, V. E. [2 ]
Liu, Z. [3 ]
Davies, H. A. [3 ]
Kaszuwara, W. [1 ]
Grabski, J. [4 ]
机构：
[1] Warsaw Univ Technol, NanoCentre, Fac Mat Sci & Engn, PL-00661 Warsaw, Poland
[2] RAS, Inst Problems Chem Phys, Chernogolovka, Russia
[3] Univ Sheffield, Dept Mat Engn, Sheffield S10 2TN, S Yorkshire, England
[4] Warsaw Univ Technol, Fac Phys, PL-00661 Warsaw, Poland
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 294卷 / 02期
基金：
英国工程与自然科学研究理事会;
关键词：
Ferromagnetic materials; Ferromagnets-nanoscale; Rare-earth transition metal alloys;
D O I：
10.1016/j.jmmm.2005.03.054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni2Y and Nd-Fe-Nb-B catalysts were used for the processing of nanoparticles by arc discharge between graphite electrodes. The products were collected from the cathode (deposit and collar) and reactor walls (soot). The ferromagnetic nanoparticles have size in the range of 10-50nm and are encapsulated in carbon shells. The chemical composition, structure and magnetic properties of the nanoparticles have been studied. For the Ni2Y catalyst we found that the arc discharge results in decomposition of the intermetallic Ni2Y phase and formation of Ni nanoparticles encapsulated in carbon shells in the collar and soot, whereas yttrium oxide was found in the deposit. For the Nd-Fe-Nb-B catalysts the magnetic properties depend on the collection place and erosion rate. Fe and Fe-Nd-Nb nanoparticles were found in the soot and deposit, respectively. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：E57 / E62
页数：6
相关论文
共 50 条
  • [31] Preparation and structure of carbon encapsulated copper nanoparticles
    Chuncheng Hao
    Feng Xiao
    Zuolin Cui
    Journal of Nanoparticle Research, 2008, 10 : 47 - 51
  • [32] Structure and magnetic properties of FeCo nanoparticles encapsulated in carbon nanotubes grown by microwave plasma enhanced chemical vapor deposition
    Hisada, Daijiro
    Fujiwara, Yuji
    Sato, Hideki
    Jimbo, Mutsuko
    Kobayashi, Tadashi
    Hata, Koichi
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2011, 323 (24) : 3184 - 3188
  • [33] Fe1-xNix Alloy Nanoparticles Encapsulated Inside Carbon Nanotubes: Controlled Synthesis, Structure and Magnetic Properties
    Ghunaim, Rasha
    Damm, Christine
    Wolf, Daniel
    Lubk, Axel
    Buechner, Bernd
    Mertig, Michael
    Hampel, Silke
    NANOMATERIALS, 2018, 8 (08):
  • [34] Magnetic properties and microstructure of carbon encapsulated Ni nanoparticles and pure Ni nanoparticles coated with NiO layer
    Sun, XC
    Dong, XL
    MATERIALS RESEARCH BULLETIN, 2002, 37 (05) : 991 - 1004
  • [35] Magnetic properties of Fe3C ferromagnetic nanoparticles encapsulated in carbon nanotubes
    Komogortsev, S. V.
    Iskhakov, R. S.
    Balaev, A. D.
    Kudashov, A. G.
    Okotrub, A. V.
    Smirnov, S. I.
    PHYSICS OF THE SOLID STATE, 2007, 49 (04) : 734 - 738
  • [36] Magnetic properties of Fe3C ferromagnetic nanoparticles encapsulated in carbon nanotubes
    S. V. Komogortsev
    R. S. Iskhakov
    A. D. Balaev
    A. G. Kudashov
    A. V. Okotrub
    S. I. Smirnov
    Physics of the Solid State, 2007, 49 : 734 - 738
  • [37] Carbon-encapsulated cobalt nanoparticles: synthesis, properties, and magnetic particle hyperthermia efficiency
    Kotoulas, A.
    Dendrinou-Samara, C.
    Sarafidis, C.
    Kehagias, Th.
    Arvanitidis, J.
    Vourlias, G.
    Angelakeris, M.
    Kalogirou, Orestis
    JOURNAL OF NANOPARTICLE RESEARCH, 2017, 19 (12)
  • [38] Carbon-encapsulated cobalt nanoparticles: synthesis, properties, and magnetic particle hyperthermia efficiency
    A. Kotoulas
    C. Dendrinou-Samara
    C. Sarafidis
    Th. Kehagias
    J. Arvanitidis
    G. Vourlias
    M. Angelakeris
    Orestis Kalogirou
    Journal of Nanoparticle Research, 2017, 19
  • [39] Preparation and Microwave Absorbing Properties of Carbon-Encapsulated Iron Carbide Magnetic Nanoparticles
    Li, Qing-huai
    Liu, Xiao-lai
    Zhao, Dong-lin
    PROCEEDINGS OF THE 7TH NATIONAL CONFERENCE ON CHINESE FUNCTIONAL MATERIALS AND APPLICATIONS (2010), VOLS 1-3, 2010, : 202 - +
  • [40] Magnetic properties and transmission electron microscopy studies of Ni nanoparticles encapsulated in carbon nanocages and carbon nanotubes
    He, Chunnian
    Zhao, Naiqin
    Shi, Chunsheng
    Li, Jiajun
    Li, Haipeng
    MATERIALS RESEARCH BULLETIN, 2008, 43 (8-9) : 2260 - 2265
12345