Self-assembly and branching of sucrose stabilized silver nanoparticles by microwave assisted synthesis: From nanoparticles to branched nanowires structures

被引:21
作者
Filippo, Emanuela [1 ]
Serra, Antonio [1 ]
Manno, Daniela [1 ]
机构
[1] Univ Salento, Dept Mat Sci, I-73100 Lecce, Italy
关键词
Nanostructures; Chemical synthesis; Electron microscopy; Spectroscopy; GOLD NANORODS; POLYOL METHOD; NANOSTRUCTURES; COLLOIDS; GROWTH; PHASE; SEEDS;
D O I
10.1016/j.colsurfa.2009.07.023
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
Silver nanostructures were synthesized under microwave irradiation from a Solution of silver nitrate and sucrose, with any other reducing or capping agent. The size and morphology of nanostructures changed continuously during the irradiation time. The obtained nanostructures at the different irradiation time were characterized by X-Ray diffraction, UV-vis spectroscopy, scanning and transmission electron microscopy and selected area diffraction pattern. It was evidenced that initially Ag nanoparticles were formed, which, as reaction time elapsed, self-assembled and fused with each other to yield nanowires and further branched nanowires. The formation of the silver branched nanostructures can be explained as a process of initial reduction-nucleation-adsorption-growth. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:205 / 211
页数:7
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