Characterization of binary gold/platinum nanoparticles prepared by sonochemistry technique

被引：38

作者：

Nakanishi, M

Takatani, H

Kobayashi, Y

Hori, F

Taniguchi, R

Iwase, A

Oshima, R

机构：

[1] Osaka Prefecture Univ, Adv Sci & Technol Res Inst, Sakai, Osaka 5998570, Japan

[2] Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan

来源：

APPLIED SURFACE SCIENCE | 2005年 / 241卷 / 1-2期

关键词：

sonochemistry; gold-platinum alloy; nanoparticle; core-shell structure; HRTEM; Au-197 Mossbauer spectroscopy;

D O I：

10.1016/j.apsusc.2004.09.046

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Aqueous solutions with Au3+ and Pt4+ ions and additives of surfactants (SDS or PEG-MS) were irradiated with an ultrasound 2 at 200 kHz with an input power of 4.2 W/cm(2) and colloidal nanoparticles were prepared. The prepared nanoparticles were characterized by XRD, TEM, HRTEM, EDX and Au-197 Mossbauer spectroscopy. It was found that the structures of nanoparticles were changed with the surfactants; Au and Pt nanoparticles were prepared individually by using SDS, and bimetallic Au/Pt alloy nanoparticles with a core-shell structure were produced in the presence of PEG-MS. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：209 / 212

页数：4

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