Synthesis of cubic Pd-Ag random alloy nanocrystal in an aqueous solution in the presence of CTAB

被引：3

作者：

Tsuji, Masaharu ^{[1
,2
,3
]}

Takemura, Koichi ^{[2
]}

Shiraishi, Chihiro ^{[2
]}

Uto, Keiko ^{[1
]}

Yoshida, Yuki ^{[3
]}

Daio, Takeshi ^{[4
]}

机构：

[1] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

[2] Kyushu Univ, Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan

[3] Kyushu Univ, Grad Sch Integrated Frontier Sci, Kasuga, Fukuoka 8168580, Japan

[4] Kyushu Univ, Res Lab High Voltage Electron Microscopy, Nishi Ku, Fukuoka 8190395, Japan

来源：

MATERIALS LETTERS | 2013年 / 95卷

关键词：

Pd-Ag bimetallic nanoparticles; Cubic nanocrystal; Random alloy; Crystal structure; NANOPARTICLES;

D O I：

10.1016/j.matlet.2012.12.093

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When a mixture of H2PdCl4 and AgNO3 was co-reduced by ascorbic acid in aqueous solution in the presence of CTAB as a surfactant, aside from irregular shapes of Pd-Ag alloy particles, new cubic Pd-Ag alloy nanocrystals were prepared. The transmission electron microscopic (TEM)-energy dispersed X-ray spectroscopic (EDS) data at the atomic level suggest that Pd-Ag cubic alloys surrounded by (100) facets consist of substitutional solid solution and the arrangement of the solute Ag atoms is random. The Ag atomic content in Pd-Ag alloy must be less than approximate to 22% for preservation of the cubic structure. Optical properties of Pd-Ag alloys were characterized by observing the extinction spectra in the ultraviolet(UV)-visible(vis) range. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：201 / 204

页数：4

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