Analytical TEM observation of Au-Pd nanoparticles prepared by sonochemical method

被引：42

作者：

Akita, T. ^{[1
]}

Hiroki, T. ^{[2
]}

Tanaka, S. ^{[1
]}

Kojima, T. ^{[3
]}

Kohyama, M. ^{[1
]}

Iwase, A. ^{[2
]}

Hori, F. ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Ubiquitous Energy Device, Ikeda, Osaka 5638577, Japan

[2] Osaka Prefecture Univ, Dept Mat Sci, Sakai, Osaka 5998531, Japan

[3] Osaka Prefecture Univ, Ctr Radiat Res, Sakai, Osaka 5998531, Japan

来源：

CATALYSIS TODAY | 2008年 / 131卷 / 1-4期

基金：

日本学术振兴会;

关键词：

TEM; ADF-STEM; EDS; Au-Pd; nanoparticles; core-shell; BIMETALLIC NANOPARTICLES; CATALYTIC-ACTIVITY; HYDROGEN-PEROXIDE; EPITAXIAL-GROWTH; GOLD; GOLD/PALLADIUM; PARTICLES; H-2;

D O I：

10.1016/j.cattod.2007.10.033

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The Au-Pd nanoparticles prepared by sonochemical technique were investigated by the analytical transmission electron microscopy. The core (Au)-shell (Pd) structure without apparent mixing layers and with similar thickness of Pd shells was clearly confirmed by the image and intensity profile of annular dark field scanning transmission electron microscopy (ADF-STEM) and also by the line-scan analysis of energy dispersive X-ray spectroscopy (EDS) in STEM mode. Detailed analyses of the ADF-STEM imaging, the electron diffraction pattern and the FFT pattern of HRTEM images complementarity show that the Pd shell epitaxially grows on the An core expanded with the same lattice constant as An and with the coherent Pd/Au interface structure. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：90 / 97

页数：8

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