Characterization of core-shell type and alloy Ag/Au bimetallic clusters by using extended X-ray absorption fine structure spectroscopy

被引：91

作者：

Chen, HM

Liu, RS

Jang, LY

Lee, JF

Hu, SF

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

[3] Natl Nano Device Labs, Hsinchu 300, Taiwan

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 421卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2006.01.043

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：

Bimetallic silver and gold nanoparticles, a core-shell type structure, have been prepared by NaBH4 reduction method. The optical absorption spectra are recorded and compared with various ratios of Ag/Au alloy nanoparticles. The absorption spectra of bimetallic nanoparticles suggested the formation of core-shell structure. On the other hand, the high resolution transmission electron microscopy image of the nanoparticles confirmed the core-shell type configuration directly. Moreover, we studied the surrounding environment of core-shell type and alloy nanoparticles around gold atoms by using extended X-ray absorption fine structure spectroscopy. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：118 / 123

页数：6

共 26 条

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