Polyoxometalate-stabilized, water dispersible Fe2Pt magnetic nanoparticles

被引：19

作者：

Seemann, K. M. ^{[1
,2
,3
,4
]}

Bauer, A. ^{[1
]}

Kindervater, J. ^{[1
]}

Meyer, M. ^{[5
,6
]}

Besson, C. ^{[3
,4
,7
]}

Luysberg, M. ^{[8
]}

Durkin, P. ^{[9
]}

Pyckhout-Hintzen, W. ^{[5
,6
]}

Budisa, N. ^{[9
]}

Georgii, R. ^{[1
,2
]}

Schneider, C. M. ^{[3
,4
]}

Koegerler, P. ^{[3
,4
,7
]}

机构：

[1] Tech Univ Munich, Phys Dept E21, D-85748 Garching, Germany

[2] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz, D-85748 Garching, Germany

[3] Forschungszentrum Julich, Peter Grunberg Inst PGI 6, D-52425 Julich, Germany

[4] Forschungszentrum Julich, JARA FIT, D-52425 Julich, Germany

[5] Forschungszentrum Julich, Julich Ctr Neutron Sci JCNS 1, D-52425 Julich, Germany

[6] Forschungszentrum Julich, Inst Complex Syst ICS 1, D-52425 Julich, Germany

[7] Rhein Westfal TH Aachen, Inst Anorgan Chem, D-52074 Aachen, Germany

[8] Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, Peter Grunberg Inst PGI 5, D-52425 Julich, Germany

[9] Tech Univ Berlin, Inst Organ Chem, D-10585 Berlin, Germany

来源：

NANOSCALE | 2013年 / 5卷 / 06期

关键词：

QUANTUM DOTS; SURFACE; CATALYSIS;

D O I：

10.1039/c3nr33374d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Magnetic Fe2Pt core-shell nanoparticles with 2 nm cores were synthesized with a monolayer coating of silicotungstate Keggin clusters. The core-shell composition is substantiated by structural analysis performed using high-resolution scanning transmission electron microscopy (HR-STEM) and small angle X-ray scattering (SAXS) in a liquid suspension. The molecular metal oxide cluster shell introduces an enhanced dispersibility of the magnetic Fe-Pt core-shell nanoparticles in aqueous media and thereby opens up new routes to nanoparticle bio-functionalization, for example, using pre-functionalized polyoxometalates.

引用

页码：2511 / 2519

页数：9

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