Ultrasonically Assisted Synthesis of 3D Hierarchical Silver Microstructures

被引：32

作者：

Chen, Hongjun ^{[1
]}

Kern, Ellen ^{[1
]}

Ziegler, Christoph ^{[1
]}

Eychmueller, Alexander ^{[1
]}

机构：

[1] Tech Univ Dresden, D-01062 Dresden, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 44期

关键词：

ENHANCED RAMAN-SCATTERING; DENDRITIC NANOSTRUCTURES; ROOM-TEMPERATURE; GOLD NANOSTRUCTURES; SURFACE; NANOPARTICLES; SPECTROSCOPY; PALLADIUM; FABRICATION; FACILE;

D O I：

10.1021/jp906236q

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：

In this paper, we report on a facile, environmentally friendly, and ultrasonically assisted route to synthesis of three-dimensional (3D) hierarchical silver microstructures. This is achieved without the use of any templates, surfactants, or polymers. By reducing [Ag(NH3)(2)](+) with H2O2 in an aqueous solution, 3D flowerlike silver microstructures (FSMs) are formed within a few minutes. It is found that the duration of sonication and the quantity of H2O2 play important roles in the formation of the 3D FSMs The addition of citrate as a protecting agent changes the morphology of the products into that of 3D cauliflower-like silver microstructures (CSMs). Due to their large surface areas, these 3D hierarchical silver microstructures may find use as substrates for surface-enhanced Raman scattering applications

引用

收藏

页码：19258 / 19262

页数：5

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