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Magnetic properties of carbon coated Fe, Co and Ni nanoparticles

► Fe@C, Co@C and Ni@C nanoparticles have been fabricated by an efficient solid-state route using melamine as carbon source. ► The experimental results show that the structure and morphology of Fe@C are different from those of Co@C and Ni@C. ► It is shown that the graphitization degree of carbon decr... Full description

Journal Title: Journal of Alloys and Compounds 2012, Vol.513, pp.193-201
Main Author: Wu, Aibing
Other Authors: Yang, Xuwei , Yang, Hua
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0925-8388 ; E-ISSN: 1873-4669 ; DOI: 10.1016/j.jallcom.2011.10.018
Link: https://www.sciencedirect.com/science/article/pii/S0925838811019724
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recordid: elsevier_sdoi_10_1016_j_jallcom_2011_10_018
title: Magnetic properties of carbon coated Fe, Co and Ni nanoparticles
format: Article
creator:
  • Wu, Aibing
  • Yang, Xuwei
  • Yang, Hua
subjects:
  • Fe@C
  • Co@C
  • Ni@C
  • Magnetic Properties
  • Nanoparticles
  • Engineering
  • Chemistry
  • Physics
ispartof: Journal of Alloys and Compounds, 2012, Vol.513, pp.193-201
description: ► Fe@C, Co@C and Ni@C nanoparticles have been fabricated by an efficient solid-state route using melamine as carbon source. ► The experimental results show that the structure and morphology of Fe@C are different from those of Co@C and Ni@C. ► It is shown that the graphitization degree of carbon decreases in the order Fe@C > Co@C > Ni@C. ► The variations of magnetic properties of Co@C and Ni@C with the increase of synthesis temperature are discussed respectively. Carbon coated Fe, Co and Ni nanoparticles (Fe@C, Co@C and Ni@C) have been fabricated by an efficient solid-state route using melamine as carbon source. The structure and morphology of Fe@C, Co@C and Ni@C nanoparticles were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). It is shown that the structure and morphology of Fe@C are different from those of Co@C and Ni@C. The crystallinity of carbon in Fe@C, Co@C and Ni@C nanoparticles was examined by Raman spectroscopy. The results indicate that the graphitization degree of carbon decreases in the order Fe@C > Co@C > Ni@C. Additionally, the reactions involved in the syntheses are speculated. The magnetic properties of Fe@C, Co@C and Ni@C nanoparticles were tested by VSM at room temperature. The variations of magnetic properties of Co@C and Ni@C with the increase of reactive temperatures are discussed respectively.
language: eng
source:
identifier: ISSN: 0925-8388 ; E-ISSN: 1873-4669 ; DOI: 10.1016/j.jallcom.2011.10.018
fulltext: fulltext
issn:
  • 0925-8388
  • 09258388
  • 1873-4669
  • 18734669
url: Link


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description► Fe@C, Co@C and Ni@C nanoparticles have been fabricated by an efficient solid-state route using melamine as carbon source. ► The experimental results show that the structure and morphology of Fe@C are different from those of Co@C and Ni@C. ► It is shown that the graphitization degree of carbon decreases in the order Fe@C > Co@C > Ni@C. ► The variations of magnetic properties of Co@C and Ni@C with the increase of synthesis temperature are discussed respectively. Carbon coated Fe, Co and Ni nanoparticles (Fe@C, Co@C and Ni@C) have been fabricated by an efficient solid-state route using melamine as carbon source. The structure and morphology of Fe@C, Co@C and Ni@C nanoparticles were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). It is shown that the structure and morphology of Fe@C are different from those of Co@C and Ni@C. The crystallinity of carbon in Fe@C, Co@C and Ni@C nanoparticles was examined by Raman spectroscopy. The results indicate that the graphitization degree of carbon decreases in the order Fe@C > Co@C > Ni@C. Additionally, the reactions involved in the syntheses are speculated. The magnetic properties of Fe@C, Co@C and Ni@C nanoparticles were tested by VSM at room temperature. The variations of magnetic properties of Co@C and Ni@C with the increase of reactive temperatures are discussed respectively.
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