【摘要】 结合晶种法和光化学还原法 ,在聚乙烯吡咯烷酮 (PVP)的诱导下成功地制备出直径为 5 0～ 12 0nm ,长度约为 5 0 μm的银纳米线以及银的树枝状纳米结构 .实验表明各种反应条件如聚乙烯吡咯烷酮和硝酸银的摩尔比、晶种的加入量及反应时间等对纳米产物的形貌有影响 .根据实验结果提出了一种新的银纳米线的形成机理 .更多还原

【Abstract】 Using seed-mediated and photochemical reduction approach in the presence of poly(vinyl pyrrolidone) (PVP), Ag nanowires with diameters of 50～120 nm and lengths up to ～50 μm and elegant silver dendrites were prepared at room temperature. It was found that experimental conditions including the molar ratio of PVP to AgNO 3, the volume of silver seeds, and the reaction time all play influential roles in the formation of silver nanostructures. The mechanisms of formation of those silver nanostructures were discussed preliminarily.更多还原