文献类型：期刊文献

中文题名：晶种法制备高长径比纳米银线的研究

英文题名：Study on the Preparation of Silver Nanowires with High Aspect Ratio by Seeding Method

作者：王欢[1];陈雪梅[1]

机构：[1]华东理工大学化工学院超细粉末国家工程研究中心,上海200237

年份：2019

卷号：48

期号：1

起止页码：1

中文期刊名：人工晶体学报

外文期刊名：Journal of Synthetic Crystals

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；

基金：中央高校基本科研业务费专项资金(222201817010)

语种：中文

中文关键词：纳米银线;AgCl;晶种;长径比

外文关键词：silver nanowire;AgCl;seed;aspect ratio

摘要：利用AgNO_3和NaCl反应生成的AgCl颗粒作为晶种合成纳米银线。详细研究了纳米银线在溶液中的生长过程,探讨了AgCl晶种与银源AgNO_3物质的量的比和反应时间对纳米银线形貌的影响。通过SEM、TEM、XRD、紫外可见光光谱等测试方法,对纳米银线的生长过程和不同条件下制备的纳米银线的微观形貌和晶体结构进行表征。实验表明,纳米银线是在AgCl颗粒表面上定向生长,AgCl与AgNO_3物质的量的比和反应时间影响纳米银线的长度和直径大小。当AgCl与AgNO_3的物质的量比为1∶5,反应时间4 min时,制备的纳米银线平均直径52 nm,长径比超过了1000。
Silver nanowires(AgNWs)were synthesized by utilizing AgCl particles(reaction products between AgNO 3 and NaCl)as the seeds.The growth process of AgNWs was investigated in detail.The effect of molar ratios of AgCl to AgNO 3 and reaction time of AgCl seeds on morphology of AgNWs was dicussed.The growth process of AgNWs,all microcosmic morphology and crystalline structures of the silver products prepared in different condition were characterized through scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD)and ultraviolet-visible spectrophotometer(Uv-vis).The results show that AgNWs grow anisotropically on the surface of AgCl particles.Moreover,the molar ratios of AgCl to AgNO 3 and reaction time of AgCl seeds play important roles in the length and diameter of AgNWs.The AgNWs with 52 nm in diameter and aspect ratio above 1000 were synthesized when the molar ratio of AgCl to AgNO 3 is 1∶5 and the reaction time between AgNO 3 and NaCl was 4 min.