Cheng, G.
and Hight, A.
(2007),
Synthesis and Characterization of Cobalt/Gold Bimetallic Nanoparticles, Journal of Magnetism and Magnetic Materials
(Accessed July 7, 2025)
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Synthesis and Characterization of Cobalt/Gold Bimetallic Nanoparticles
Published
Author(s)
,
Abstract
Cobalt/gold (Co/Au) bimetallic nanoparticles are prepared by synthesizing Au via chemical reduction in the presence of pre-synthesized Co nanoparticles. Transmission electron microscopy (TEM), ultraviolet-visible (UV-vis) absorption spectrometry, and a superconducting quantum interference device (SQUID) magnetometer have been used to characterize as-prepared bimetallic nanoparticles. Our findings demonstrate Au can not only grow onto Co nanoparticles, but also diffuse into Co nanoparticles. The introduction of Au alters the crystalline structure of Co nanoparticles and changes their magnetic properties. Dodecanethiols can induce the reorganization of as-prepared Co/Au bimetallic nanoparticles.Citation
Journal of Magnetism and Magnetic Materials
Volume
311
Issue
1
Pub Type
Journals
Keywords
bimetallic nanoparticle, cobalt nanoparticles, cobalt/gold, magnetic nanoparticles, magnetic properties
Citation
Issues
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Created April 1, 2007, Updated February 17, 2017