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Controlled Synthesis and Characterization of Co-Au Core-shell Nanoparticles

Published online by Cambridge University Press:  01 February 2011

Yuping Bao ,
Hector Calderon  and
Kannan M. Krishnan
Yuping Bao
Affiliation:
Depto. Ciencia de Materiales, ESFM-IPN, Mexico, DF 07338, Mexico
Hector Calderon
Affiliation:
Depto. Ciencia de Materiales, ESFM-IPN, Mexico, DF 07338, Mexico
Kannan M. Krishnan
Affiliation:
Depto. Ciencia de Materiales, ESFM-IPN, Mexico, DF 07338, Mexico
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Abstract

Co-Au Core-shell nanoparticles are synthesized by slowly reducing an organo-gold compound on pre-made cobalt seeds with a weak reducer at mild condition. For the first time, these coreshell nanoparticles are generated in non-polar solvent in a controlled manner. The formation theory of core-shell structure, especially the seed size effect, is addressed as well. These coreshell structures are confirmed with a wide range of transmission electron microscopy (TEM) methods, which includes routine TEM images, high resolution TEM, and z-contrast imaging.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 877: Symposium S – Magnetic Nanoparticles and Nanowires , 2005 , s3.4
Copyright
Copyright © Materials Research Society 2005

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