Synthesis and magnetic properties of multifunctional Fe3O 4-AuPt core-shell nanoparticles

Ah Young Song; Jun Hua Wu; Ji Hyun Min; Reasmey P. Tan; Ji Sung Lee; Young Keun Kim

doi:10.1109/TMAG.2009.2025667

Synthesis and magnetic properties of multifunctional Fe₃O ₄-AuPt core-shell nanoparticles

Ah Young Song, Jun Hua Wu, Ji Hyun Min, Reasmey P. Tan, Ji Sung Lee, Young Keun Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper describes the synthesis and magnetic properties of multifunctional Fe₃ O₄ - AuPt core-shell nanoparticles. The Fe₃ O₄ - AuPt core-shell nanoparticles were synthesized by a one-pot polyol process in two consecutive steps from Fe, Au, and Pt precursors. The structural characterization and property analysis proves the formation of the core-shell nanostructure fusing the multifunctionality in a single entity. The TEM observation shows that the Fe₃ O₄ -AuPt core-shell nanoparticles are highly crystalline and uniform in size distribution, with an averaged particle size of ̃ 12.5 nm in diameter, whereas the X-ray diffraction patterns provide further substantiation. The surface plasmon resonance arising from the AuPt nano-shell was revealed by UV-vis spectroscopy, while the magnetic measurements by VSM and PPMS demonstrate the well-defined superparamagnetic and/or soft-ferromagnetic behavior of the Fe₃ O₄ - AuPt core-shell nanoparticles.

Original language	English
Article number	5257275
Pages (from-to)	4041-4044
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	45
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2009.2025667
Publication status	Published - 2009 Oct

Bibliographical note

Funding Information:
This work was supported in part by the National Research Foundation of Korea through the Pioneer Research Center Program funded by the Ministry of Education, Science and Technology (No. M10711160001-08M1116-00110), the Korea Research Foundation Grant (KRF-2004-005-D00057), and by the Seoul R&BD Program (No. 10920).

Keywords

AuPt
Core-shell nanoparticle
Ferromagnetic
Iron oxide
Superparamagnetic
Surface plasmon

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2009.2025667

Cite this

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title = "Synthesis and magnetic properties of multifunctional Fe3O 4-AuPt core-shell nanoparticles",

abstract = "This paper describes the synthesis and magnetic properties of multifunctional Fe3 O4 - AuPt core-shell nanoparticles. The Fe3 O4 - AuPt core-shell nanoparticles were synthesized by a one-pot polyol process in two consecutive steps from Fe, Au, and Pt precursors. The structural characterization and property analysis proves the formation of the core-shell nanostructure fusing the multifunctionality in a single entity. The TEM observation shows that the Fe3 O4 -AuPt core-shell nanoparticles are highly crystalline and uniform in size distribution, with an averaged particle size of{\~ } 12.5 nm in diameter, whereas the X-ray diffraction patterns provide further substantiation. The surface plasmon resonance arising from the AuPt nano-shell was revealed by UV-vis spectroscopy, while the magnetic measurements by VSM and PPMS demonstrate the well-defined superparamagnetic and/or soft-ferromagnetic behavior of the Fe3 O4 - AuPt core-shell nanoparticles.",

keywords = "AuPt, Core-shell nanoparticle, Ferromagnetic, Iron oxide, Superparamagnetic, Surface plasmon",

author = "Song, {Ah Young} and Wu, {Jun Hua} and Min, {Ji Hyun} and Tan, {Reasmey P.} and Lee, {Ji Sung} and Kim, {Young Keun}",

note = "Funding Information: This work was supported in part by the National Research Foundation of Korea through the Pioneer Research Center Program funded by the Ministry of Education, Science and Technology (No. M10711160001-08M1116-00110), the Korea Research Foundation Grant (KRF-2004-005-D00057), and by the Seoul R&BD Program (No. 10920).",

year = "2009",

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AU - Wu, Jun Hua

AU - Min, Ji Hyun

AU - Tan, Reasmey P.

AU - Lee, Ji Sung

AU - Kim, Young Keun

N1 - Funding Information: This work was supported in part by the National Research Foundation of Korea through the Pioneer Research Center Program funded by the Ministry of Education, Science and Technology (No. M10711160001-08M1116-00110), the Korea Research Foundation Grant (KRF-2004-005-D00057), and by the Seoul R&BD Program (No. 10920).

PY - 2009/10

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N2 - This paper describes the synthesis and magnetic properties of multifunctional Fe3 O4 - AuPt core-shell nanoparticles. The Fe3 O4 - AuPt core-shell nanoparticles were synthesized by a one-pot polyol process in two consecutive steps from Fe, Au, and Pt precursors. The structural characterization and property analysis proves the formation of the core-shell nanostructure fusing the multifunctionality in a single entity. The TEM observation shows that the Fe3 O4 -AuPt core-shell nanoparticles are highly crystalline and uniform in size distribution, with an averaged particle size of ̃ 12.5 nm in diameter, whereas the X-ray diffraction patterns provide further substantiation. The surface plasmon resonance arising from the AuPt nano-shell was revealed by UV-vis spectroscopy, while the magnetic measurements by VSM and PPMS demonstrate the well-defined superparamagnetic and/or soft-ferromagnetic behavior of the Fe3 O4 - AuPt core-shell nanoparticles.

AB - This paper describes the synthesis and magnetic properties of multifunctional Fe3 O4 - AuPt core-shell nanoparticles. The Fe3 O4 - AuPt core-shell nanoparticles were synthesized by a one-pot polyol process in two consecutive steps from Fe, Au, and Pt precursors. The structural characterization and property analysis proves the formation of the core-shell nanostructure fusing the multifunctionality in a single entity. The TEM observation shows that the Fe3 O4 -AuPt core-shell nanoparticles are highly crystalline and uniform in size distribution, with an averaged particle size of ̃ 12.5 nm in diameter, whereas the X-ray diffraction patterns provide further substantiation. The surface plasmon resonance arising from the AuPt nano-shell was revealed by UV-vis spectroscopy, while the magnetic measurements by VSM and PPMS demonstrate the well-defined superparamagnetic and/or soft-ferromagnetic behavior of the Fe3 O4 - AuPt core-shell nanoparticles.

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