Air stable core-shell multilayer metallic nanoparticles synthesized by RAPET: fabrication, characterization and suggested applications

被引：18

作者：

Butovsky, Evgeny ^{[1
]}

Perelshtein, Ilana ^{[1
]}

Gedanken, Aharon ^{[1
]}

机构：

[1] Bar Ilan Univ, Dept Chem, Kanbar Lab Nanomat, Inst Nanotechnol & Adv Mat, IL-52900 Ramat Gan, Israel

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 30期

关键词：

BIMETALLIC NANOPARTICLES; SILVER NANOPARTICLES; CHEMICAL-REDUCTION; AUTOGENIC PRESSURE; CATALYTIC-ACTIVITY; CARBON NANOTUBES; GOLD NANORODS; AG; ELECTROCATALYSTS; DECOMPOSITION;

D O I：

10.1039/c2jm32528d

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：

We have developed a novel synthesis of carbon coated Cu@Ag and Ag@Cu core-shell nanoparticles by a rapid, cheap, solvent-less and straightforward method of fabrication. The technique by which these composites are prepared is called RAPET (Reaction under Autogenic Pressure at Elevated Temperatures). The X-ray diffraction measurements confirm the presence of two separated phases - silver and copper - and negate the possibility of alloy formation. Elemental mapping obtained by electron energy-loss spectroscopy (EELS) and line-scan analysis confirm the core-shell structure. Colloidal suspensions of Cu@Ag@C nanostructures were prepared and their stability was examined by dynamic light scattering (DLS) measurements. The mechanism of formation of the multilayer nanostructures is discussed here.

引用

页码：15025 / 15030

页数：6

共 47 条

[1] Fabrication of Cu-coated Ag nanocrystals in silica by sequential ion implantation [J].