【摘要】 通过简单的油浴加热法,在没有保护气体的氛围中,利用乙二醇还原硝酸银并在聚乙烯吡咯烷酮存在的条件下合成银纳米结构材料。采用扫描电子显微镜和X射线光谱表征产物。分析讨论了聚乙烯吡咯烷酮和银离子的浓度比等对最终纳米结构产物的影响,结果表明,当它们浓度比为1时,溶液中引入微量的氯离子就可以合成出大量的银纳米线。最后探讨了纳米线的合成机理。更多还原

【Abstract】 Silver nanostructure materials were synthesized through a simple oil-bath heating method by reducing silver nitrate with ethylene glycol and not using any protection atmosphere.The poly(vinylpyrrolidone)(PVP) was used as an adsorption agent in the reaction process.The scanning electron microscopy and X-ray diffraction spectrum have been employed to investigate the products.It is discussed that the concentration mole ratio of PVP and silver ions has an influence on the final resultant.Results show that the silver nanowires can be produced at high yields when the concentration ratio of the reagents equal to 1,and a few chlorine ions are injected into the solution simultaneously.The possible formation mechanism of the silver nanowires is also discussed.更多还原