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Analytical TEM Observations of Au-Pd Nano-particles Prepared by Sonochemical Techniques

Published online by Cambridge University Press:  01 February 2011

Tomoki Akita ,
Taiei Hiroki ,
Shingo Tanaka ,
Takao Kojima ,
Masanori Kohyama ,
Akihiro Iwase  and
Fuminobu Hori
Tomoki Akita
Affiliation:
t-akita@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Research Institute for Ubiquitous Energy Devices, Midorigaoka1-8-31, Ikeda, 563-8577, Japan, +81-72-751-9732, +81-72-751-9714
Taiei Hiroki
Affiliation:
am0804@mtr.osakafu-u.ac.jp, Osaka Pref. Univ., Department of Materials Science, Gakuen-cho 1-2,Naka-ku, Sakai, Osaka 599-8531, Japan
Shingo Tanaka
Affiliation:
swing@ni.aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Research Institute for Ubiquitous Energy Devices, Midorigaoka1-8-31, Ikeda, Osaka 563-8577, Japan
Takao Kojima
Affiliation:
kojima@riast.osakafu-u.ac.jp, Osaka Pref. Univ., Radiation Research Center, Gakuen-cho 1-2, Naka-ku, Sakai, Osaka 599-8570, Japan
Masanori Kohyama
Affiliation:
m-kohyama@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Research Institute for Ubiquitous Energy Devices, Midorigaoka1-8-31, Ikeda, Osaka 563-8577, Japan
Akihiro Iwase
Affiliation:
iwase@riast.osakafu-u.ac.jp, Osaka Pref. Univ., Department of Materials Science, Gakuen-cho 1-2,Naka-ku, Sakai, Osaka 599-8531, Japan
Fuminobu Hori
Affiliation:
horif@mtr.osakafu-u.ac.jp, Osaka Pref. Univ., Department of Materials Science, Gakuen-cho 1-2,Naka-ku, Sakai, Osaka 599-8531, Japan
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Abstract

The structure of Au-Pd bimetallic nanoparticles prepared by sonochemical technique was investigated by an analytical transmission electron microscopy. The core (Au)-shell (Pd) structure was clearly confirmed by the intensity profile of annular dark field scanning transmission electron microscopy (ADF-STEM). The line-scan analysis of energy dispersive X-ray spectroscopy (EDS) in STEM mode also revealed the Au core-Pd shell structure. The selected area electron diffraction pattern from the Au-Pd nanoparticles indicated the possibility that the crystal lattice of Pd shell is expanded and coincident with the crystal lattice of Au core.

Keywords

transmission electron microscopy (TEM)nanostructureAu
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 982: Symposium KK – Electron Microscopy Across Hard and Soft Materials , 2006 , 0982-KK07-07
Copyright
Copyright © Materials Research Society 2007

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References

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