文献类型：期刊文献

中文题名：高长径比高纯纳米银线的制备

英文题名：Preparation of high aspect ratio and high purity silver nanowires

作者：王昀[1];陈雪梅[1]

机构：[1]华东理工大学超细粉末国家工程研究中心,上海200237

年份：2017

卷号：27

期号：11

起止页码：2322

中文期刊名：中国有色金属学报

外文期刊名：The Chinese Journal of Nonferrous Metals

收录：CSTPCD;;EI(收录号：20181905174229);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：中共高校基本科研业务费专项基金资助(222201717010)~~

语种：中文

中文关键词：纳米银线;醇还原法;长径比

外文关键词：silver nanowire;polyol process;aspect ratio

摘要：将多元醇还原法和晶种法相结合,以硝酸银为银源、乙二醇为还原剂和溶剂、聚乙烯吡咯烷酮为生长导向剂,通过添加氯化铜作为晶型诱导剂引入晶种来制备高长径比高纯纳米银线。探讨晶型诱导剂浓度、PVP与AgNO_3的摩尔比、晶种生长时间以及体系搅拌速度等反应条件对银线形貌的影响。结果表明:在170℃下,当CuCl_2浓度为0.15mmol/L、PVP与AgNO_3的摩尔比为6:1、晶种生长时间控制为10min、搅拌速度为400r/min时,可制取长度超过50μm、直径介于80~100nm、长径比超过500的纳米银线。
Silver nanowires (AgNWs) with high aspect ratio and high purity was produced by polyol method combined with seed-growth through employing process with ethylene glycol as solvent and reducing agent, silver nitrate as silver source, polyvinyl pyrrolidone (PVP) as wire-directing agent and copper chloride (CuCl2) as seed inducer. The effects of the concentration of seed inducer, the molar ratio of polyvinyl pyrrolidone (PVP) to silver nitrate (AgNO3), time of seed-growth and the stirring rate on the morphology and size of AgNWs were investigated. The results show that AgNWs with length over 50 μm, diameter ranging from 80-100 nm and aspect ratio over 500 are prepared when the concentration of CuCl2 is 0.15 mmol/L, the molar ratio of PVP to AgNO3 is 6, the growing time of seed is 10min and the stirring speed is 400 r/min at 170 ℃.