长径比大于1200的超长AgNWs制备及影响因素OA
Preparation of Ultra-long AgNWs with Aspect Ratio Greater than 1200 and Research on Their Influencing Factors
采用改进多元醇法制备了长径比大于 1200 的超长银纳米线(AgNWs).系统研究了反应温度(120～170℃)、反应时间(0.5～3 h)、搅拌速率(0～300 rpm)、聚乙烯吡咯烷酮(PVP)分子量(58000～1280000 g/mol)、氯化铁(FeCl3)乙二醇溶液添加量(0～5.6 g,5 mM)和 PVP添加量(0.2～1 g)对AgNWs形貌的影响.在最佳实验条件下,制备的超长AgNWs平均长度约96.6 μm,平均直径约80.0 nm.此外,通过简单的调控PVP添加量可以获得不同长度和直径的AgNWs.
Ultra-long silver nanowires(AgNWs)with a high aspect ratio(>1200)were prepared by a modified polyol method.The effects of reaction temperature(120～170℃),reaction time(0.5～3 h),stirring rate(0～300 rpm),molecular weight of poly(vinylpyrrolidone)(PVP)(58,000～12,800,000 g/mol),the amount of ferric chloride(FeCl3)ethylene glycol solution added(0～5.6 g,5 mM)and the amount of PVP added(0.2～1 g)on the morphology of AgNWs.The ultra-long AgNWs prepared under the optimal experimental conditions had an average length of about 96.6 μm and an average diameter of about 80.0 nm.In addition,AgNWs with different lengths and diameters could be obtained by simply regulating the amount of PVP added.
曾俊;朱海鑫;姜珊珊;孙菲;王斌
中国科学院广州化学研究所,广东 广州 510650||中国科学院新型特种精细化学品工程实验室,广东 广州 510650||国科广化(南雄)新材料研究院有限公司,广东 南雄 512400||国科广化韶关新材料研究院,广东 南雄 512400||中国科学院大学,北京 100049
化学
银纳米线多元醇法超长高长径比氯化铁
silver nanowirepolyol methodultra-longhigh aspect ratioferrous chloride
《广州化学》 2024 (001)
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