Self-organized synthesis of silver chainlike and dendritic nanostructures via a solvothermal method
Self-organized synthesis of silver chainlike and dendritic nanostructures via a solvothermal method
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DOI：
10.1021/cm034628v
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发表时间：
2003-11-18
影响因子：
8.6
通讯作者：
Lin, YH
中科院分区：
文献类型：
--
作者：
Wei, GD;Nan, CW;Lin, YH
以聚乙烯吡咯烷酮(PVP)为吸附剂，以结构软模板为模板，通过简单的溶剂热法自组织形成了具有分形特征的银链状和树枝状纳米结构。用Cayley树模型合理地解释了分枝的分形形态。在连续的银粒子之间没有观察到明显的颈缩边界。随着反应时间的延长，颈缩消失，链状银的生长导致银树枝状纳米结构和纳米线的形成。银树枝状纳米结构的形成可以解释为初始reduction-nucleation-adsorption-growth-branching-growth.的过程
Well-defined silver chainlike and dendritic nanostructures with fractal features were self-organized via a simple solvothermal method using poly(vinyl pyrrolidone) (PVP) as an adsorption agent and architecture soft template. The branching fractal morphology was reasonably explained by using the Cayley tree model. There is no obvious boundary observed at necks between continuous Ag particles. With prolonging reaction duration, the necks disappear, and the growth of the chainlike silver leads to the formation of the Ag dendritic nanostructure and nanowires. The formation of the Ag dendritic nanostructure can be explained as a process of initial reduction-nucleation-adsorption-growth-branching-growth.