长径比大于1200的超长AgNWs制备及影响因素  

Preparation of Ultra-long AgNWs with Aspect Ratio Greater than 1200 and Research on Their Influencing Factors

作　　者：曾俊 朱海鑫 姜珊珊 孙菲 王斌[1,2,3,4,5] ZENG Jun;ZHU Haixin;JIANG Shanshan;SUN Fei;WANG Bin(Guangzhou Institute of Chemistry,CAS,Guangzhou 510650,China;CAS Engineering Laboratory for Special Fine Chemicals,CAS,Guangzhou 510650,China;CASH GCC(Nanxiong)Research Institute of Advanced Materials Co.,Ltd.,Shaoguan 512400,China;CASH GCC Shaoguan Research Institute of Advanced Materials,Shaoguan 512400,China;University of Chinese Academy of Sciences,Beijing 10049,China)

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院新型特种精细化学品工程实验室,广东广州510650 [3]国科广化(南雄)新材料研究院有限公司,广东南雄512400 [4]国科广化韶关新材料研究院,广东南雄512400 [5]中国科学院大学,北京100049

出　　处：《广州化学》2024年第1期1-6,I0001,共7页Guangzhou Chemistry

摘　　要：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(0.5~3h)、搅拌速率(0~300rpm)、聚乙烯吡咯烷酮(PVP)分子量(58000~1280000 g/mol)、氯化铁(FeCl_(3))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Ag NWs平均长度约96.6μm,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Ag NWs。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(FeCl_(3))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 96.6μm 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.

关 键 词：银纳米线 多元醇法 超长 高长径比 氯化铁 

分 类 号：O614.122[理学—无机化学]