Synthesis of Magnetic Noble Metal (Nano)Particles

被引：32

作者：

Kowlgi, Krishna N. K.

Koper, Ger J. M.

Picken, Stephen J. ^{[1
]}

Lafont, Ugo ^{[1
,2
]}

Zhang, Lian ^{[3
]}

Norder, Ben ^{[1
]}

机构：

[1] Delft Univ Technol, Dept Chem Engn, NL-2628 BL Delft, Netherlands

[2] Delft Univ Technol, Natl Ctr High Resolut Electron Microscopy, NL-2628 CJ Delft, Netherlands

[3] Delft Univ Technol, Fac Sci Appl, NL-2628 JB Delft, Netherlands

来源：

LANGMUIR | 2011年 / 27卷 / 12期

关键词：

NANOPARTICLES; PLATINUM; NANOWIRES;

D O I：

10.1021/la105051v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Noble metal particles can be made strongly ferromagnetic or diamagnetic provided that they are synthesized in a sufficiently strong magnetic field. Here we outline two synthesis methods that are fast, reproducible, and allow broad control over particle sizes ranging from nanometers to millimeters. From magnetometry and light spectroscopy, it appears that the cause of this anomalous magnetism is the surface anisotropy in the noble metal particles induced by the applied magnetic field. This work offers an elegant alternative to composite materials of noble metals and magnetic impurities.

引用

收藏

页码：7783 / 7787

页数：5

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