Facile methods for synthesis of core-shell structured and heterostructured Fe                         3                         O                         4                         @Au nanocomposites

Lei Lou; Ke Yu; Zhengli Zhang; Rong Huang; Yiting Wang; Ziqiang Zhu

doi:10.1016/j.apsusc.2012.05.031

Facile methods for synthesis of core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites

Lei Lou
, Ke Yu^*
, Zhengli Zhang
, Rong Huang
, Yiting Wang
, Ziqiang Zhu

^*Corresponding author for this work

School of Physics and Electronic Science

East China Normal University

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

55 Scopus citations

Abstract

Two different reaction strategies designed for core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites utilizing 50 nm polyethyleneimine coated magnetite as seeds are presented aiming at diverse applications. The polyethylenimine (PEI) coated Fe ₃ O ₄ nanoparticles were firstly used as seeds to carry out the synthesis of both core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites. Results show that these two structures combined the merits of both gold and Fe ₃ O ₄ nanoparticles. What is more, the distinct morphology offers diverse applications: the shell of dense gold nanoparticles coating in the core-shell structure dominates the further surface functionalization while the heterostructure offers the particles with two distinct surfaces and functionalities due to different surfactant molecules on the surface of Fe ₃ O ₄ and Au nanoparticles. Furthermore, the synthesis methods presented in this paper also suggested new ways to the synthesis of multifunctional nanostructures.

Original language	English
Pages (from-to)	8521-8526
Number of pages	6
Journal	Applied Surface Science
Volume	258
Issue number	22
DOIs	https://doi.org/10.1016/j.apsusc.2012.05.031
State	Published - 1 Sep 2012

Keywords

Gold
Magnetic properties
Nanocomposites
Polyethyleneimine

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10.1016/j.apsusc.2012.05.031

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Lou, L., Yu, K., Zhang, Z., Huang, R., Wang, Y., & Zhu, Z. (2012). Facile methods for synthesis of core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites Applied Surface Science, 258(22), 8521-8526. https://doi.org/10.1016/j.apsusc.2012.05.031

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title = " Facile methods for synthesis of core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites ",

abstract = " Two different reaction strategies designed for core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites utilizing 50 nm polyethyleneimine coated magnetite as seeds are presented aiming at diverse applications. The polyethylenimine (PEI) coated Fe 3 O 4 nanoparticles were firstly used as seeds to carry out the synthesis of both core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites. Results show that these two structures combined the merits of both gold and Fe 3 O 4 nanoparticles. What is more, the distinct morphology offers diverse applications: the shell of dense gold nanoparticles coating in the core-shell structure dominates the further surface functionalization while the heterostructure offers the particles with two distinct surfaces and functionalities due to different surfactant molecules on the surface of Fe 3 O 4 and Au nanoparticles. Furthermore, the synthesis methods presented in this paper also suggested new ways to the synthesis of multifunctional nanostructures.",

keywords = "Gold, Magnetic properties, Nanocomposites, Polyethyleneimine",

author = "Lei Lou and Ke Yu and Zhengli Zhang and Rong Huang and Yiting Wang and Ziqiang Zhu",

year = "2012",

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day = "1",

doi = "10.1016/j.apsusc.2012.05.031",

language = "英语",

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pages = "8521--8526",

journal = "Applied Surface Science",

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Lou, L, Yu, K, Zhang, Z, Huang, R, Wang, Y & Zhu, Z 2012, ' Facile methods for synthesis of core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites ', Applied Surface Science, vol. 258, no. 22, pp. 8521-8526. https://doi.org/10.1016/j.apsusc.2012.05.031

Facile methods for synthesis of core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites . / Lou, Lei; Yu, Ke; Zhang, Zhengli et al.
In: Applied Surface Science, Vol. 258, No. 22, 01.09.2012, p. 8521-8526.

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

TY - JOUR

T1 - Facile methods for synthesis of core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites

AU - Lou, Lei

AU - Yu, Ke

AU - Zhang, Zhengli

AU - Huang, Rong

AU - Wang, Yiting

AU - Zhu, Ziqiang

PY - 2012/9/1

Y1 - 2012/9/1

N2 - Two different reaction strategies designed for core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites utilizing 50 nm polyethyleneimine coated magnetite as seeds are presented aiming at diverse applications. The polyethylenimine (PEI) coated Fe 3 O 4 nanoparticles were firstly used as seeds to carry out the synthesis of both core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites. Results show that these two structures combined the merits of both gold and Fe 3 O 4 nanoparticles. What is more, the distinct morphology offers diverse applications: the shell of dense gold nanoparticles coating in the core-shell structure dominates the further surface functionalization while the heterostructure offers the particles with two distinct surfaces and functionalities due to different surfactant molecules on the surface of Fe 3 O 4 and Au nanoparticles. Furthermore, the synthesis methods presented in this paper also suggested new ways to the synthesis of multifunctional nanostructures.

AB - Two different reaction strategies designed for core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites utilizing 50 nm polyethyleneimine coated magnetite as seeds are presented aiming at diverse applications. The polyethylenimine (PEI) coated Fe 3 O 4 nanoparticles were firstly used as seeds to carry out the synthesis of both core-shell structured and heterostructured Fe 3 O 4 @Au nanocomposites. Results show that these two structures combined the merits of both gold and Fe 3 O 4 nanoparticles. What is more, the distinct morphology offers diverse applications: the shell of dense gold nanoparticles coating in the core-shell structure dominates the further surface functionalization while the heterostructure offers the particles with two distinct surfaces and functionalities due to different surfactant molecules on the surface of Fe 3 O 4 and Au nanoparticles. Furthermore, the synthesis methods presented in this paper also suggested new ways to the synthesis of multifunctional nanostructures.

KW - Gold

KW - Magnetic properties

KW - Nanocomposites

KW - Polyethyleneimine

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U2 - 10.1016/j.apsusc.2012.05.031

DO - 10.1016/j.apsusc.2012.05.031

M3 - 文章

AN - SCOPUS:84863519209

SN - 0169-4332

VL - 258

SP - 8521

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JO - Applied Surface Science

JF - Applied Surface Science

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ER -

Lou L, Yu K, Zhang Z, Huang R, Wang Y, Zhu Z. Facile methods for synthesis of core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites Applied Surface Science. 2012 Sep 1;258(22):8521-8526. doi: 10.1016/j.apsusc.2012.05.031

Facile methods for synthesis of core-shell structured and heterostructured Fe ₃ O ₄ @Au nanocomposites

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