197Au Mossbauer study of bimetallic nanoparticles prepared by sonochemical technique

被引：7

作者：

Kobayashi, Y ^{[1
]}

Kiao, S

Seto, M

Takatani, H

Nakanishi, M

Oshima, R

机构：

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

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

来源：

HYPERFINE INTERACTIONS | 2004年 / 156卷 / 01期

关键词：

Au-197 Mossbauer spectroscopy; core-shell structure; AuPd nanoparticle; sonochemical technique;

D O I：

10.1023/B:HYPE.0000043208.68127.74

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

By ultrasonic wave irradiation, the metallic ions in aqueous solution are reduced to metallic nanoparticles. Using the mixture solution of Au and Pd ions, core(Au)-shell(Pd) structured nanoparticles are prepared. Au-197 Mossbauer spectra of core-shell structured nanoparticles contains two components, one is pure Au component due to the inner part of the Au core and the other is the positive isomer shift component due to the alloy layer at the interface of Au core and Pd shell. The thickness of the alloy layer is 0.5similar to0.7 nm.

引用

页码：75 / 79

页数：5

共 5 条

[1] THE TEMPERATURE OF CAVITATION [J].