Fe^(3+)和Cu^(2+)协同效应对银纳米线形貌的影响  

Synergistic effects of Fe^(3+)and Cu^(2+)on the morphology of silver nanowires

作　　者：宋颖 张晓波 赵丽群 戴鸿飞 SONG Ying;ZHANG Xiaobo;ZHAO Liqun;DAI Hongfei(Key Laboratory of Advanced Structural Materials Ministry of Education,School of Materials Science&Engineering,Changchun University of Technology,Changchun 130102,China)

机构地区：[1]长春工业大学材料科学与工程学院,先进结构材料教育部重点实验室,吉林长春130102

出　　处：《长春工业大学学报》2023年第4期295-299,F0003,共6页Journal of Changchun University of Technology

基　　金：吉林省科技厅自然科学基金项目(20210101135JC)。

摘　　要：银纳米线(AgNWs)作为一种一维金属纳米材料,不仅拥有银金属本身良好的导热、导电性能,还具有纳米材料特殊的物理化学性质,被认为是最有潜力替代氧化铟锡(ITO)的新兴材料。以硝酸银(AgNO_(3))为银源,CuCl_(2)和FeCl_(3)为形核控制剂,聚乙烯吡咯烷酮(PVP)为生长导向剂,采用多元醇法合成高长径比的AgNWs。保持反应体系中Cl^(-)浓度恒定,通过改变Fe^(3+)和Cu^(2+)的配比,详细考察Fe^(3+)和Cu^(2+)的协同效应对AgNWs形貌的影响。研究结果表明,当体系中形核控制剂浓度为67μmol/L,Fe^(3+)和Cu^(2+)的摩尔比为4∶3时,可高效合成直径约150 nm、长度140~180μm、长径比高达1500的AgNWs。As a one-dimensional metal nanomaterial,silver nanowires(AgNWs)not only have the good thermal and electrical conductivity of silver metal itself,but also have special physical and chemical properties of nanomaterials.It is considered to be the most potential replacement for indium tin oxide(ITO)emerging materials.Using silver nitrate(AgNO_(3))as the silver source,CuCl_(2)and FeCl_(3)as nucleation control agents,and polyvinylpyrrolidone(PVP)as the growth-directing agent,AgNWs with high aspect ratio were synthesized by polyol method.Keeping the concentration of Cl^(-)in the reaction system constant,by changing the ratio of Fe^(3+)and Cu^(2+),the synergistic effect of Fe^(3+)and Cu^(2+)on the morphology of AgNWs was investigated in detail.The research results show that when the concentration of the nucleation control agent in the system is 67μmol/L,and the molar ratio of Fe^(3+)and Cu^(2+)is 4∶3,AgNWs with a diameter of about 150 nm,a length of 140~180μm,and an aspect ratio of up to 1500 can be efficiently synthesized.

关 键 词：银纳米线 高长径比 多元醇法 形核控制剂 

分 类 号：TB[一般工业技术]